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I think of a number. I multiply it by 5 then add 4. The result is 39. Construct an equation and find the number. I think of a number. I multiply it by.

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Presentation on theme: "I think of a number. I multiply it by 5 then add 4. The result is 39. Construct an equation and find the number. I think of a number. I multiply it by."— Presentation transcript:

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2 I think of a number. I multiply it by 5 then add 4. The result is 39. Construct an equation and find the number. I think of a number. I multiply it by 3 then subtract 6. The result is 15. Construct an equation and find the number. I think of a number. I multiply it by 10 then add 9. The result is 25. Construct an equation and find the number. I think of a number. I divide it by 3 then add 7. The result is 10. Construct an equation and find the number. I think of a number. I divide it by 5 then subtract 5. The result is 13. Construct an equation and find the number. The sizes of the angles of a triangle are x, x + 10 and x Construct an equation and find the size of the angles. The sizes of the angles of a quadrilateral are z, z + 15, z + 40 and z Construct an equation and find the size of the angles.

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4 Solve the equations: I think of a number. I multiply it by 5 then add 4. The result is 29. Construct an equation and find the number. I think of a number. I divide it by 4 then add 11. The result is 20. Construct an equation and find the number. The sizes of the angles of a triangle are x, x + 30 and x Construct an equation and find the size of the angles.

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8 3 ( 5x – 2 ) = = 2 ( 3 – 2x ) 4 ( 2x + 3 ) = 5 ( x + 4 )

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10 Solve the equations: Solve the equations: Solve the equations:

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12 Solve the equations:

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17 Solve the equations: Solve the equations: Solve the equations:

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19 Solve the equations: Solve the equations: Solve the equations:

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21 Solve the equations: Solve the equations: Solve the equations:

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23 Solve the equations: Solve the equations: Solve the equations: 3x + 4y = 6 2x = 4y + 8

24 Solve the equations: Solve the equations: Solve the equations:

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26 Solve the equations: Solve the equations: Solve the equations:

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29 Solve the equations: Solve the equations: Solve the equations:


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