1. Forming & Solving Equations
Year 11 Mini-Assessment 18
HIGHER
Forming & Solving Equations

2.      16 16 3x – 5 = x + 9 Area = 256cm2 2x – 5 = 9 2x = 14
Perimeter = 64cm 
x = 7

3. 
(3x – 6) + (5x – 22) = 180
If AB and CD are parallel, EGB = GHD
because they are
complimentary angles.  
8x – 28 = 180
8x = 208 
x = 26
When x = 26, 5x – 22 = (5x26)-22 = 108
When x = 26, 4x + 4 = (4x26)+4 = 108
AB and CD are parallel 

4.  at least 1 area correct     3x2 – 6x x – 2 3x2 – 12x + 12
2(3x2 – 12x + 12) + 2(3x2 – 6x) + 2(x2 – 2x) = 174 
14x2 – 40x – 150 = 0
7x2 – 20x – 75 = 0 
(7x + 15)(x – 5)= 0 
x = 5cm