Solving multi step equations. 12X + 3 = 4X + 27 - X 12X + 3 = 3X + 27 -3X 9X + 3 = 27 -3 9X = 24 99 X = 2.6 1.

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Presentation transcript:

Solving multi step equations

12X + 3 = 4X X 12X + 3 = 3X X 9X + 3 = X = X = 2.6 1

8 – (2 – 2X) = -4X + 3(4X + 5) X = -4X + 12X X = 8X X 6 = 6X = 6X 66 X = X= + 12X X

2 – 15n = 5(-3n + 2) 2 – 15n = -15n n 2 = 10 2 can’t equal 10 so this equation has no solution

5(1 + 4m) = 2( m) m = m -20m 5 = 5 5 will always equal 5 so this equation has all solutions or infinitely many solutions

Page – 9 all

12X + 3 = 4X X = = = X =

8 – (2 – 2X) = -4X + 3(4X + 5) = = = = X =

2 – 15n = 5(-3n + 2) = = ____ can’t equal ____ so this equation has ___________

5(1 + 4m) = 2( m) = = ____ will always equal _____ so this equation has _____________ or ______________________