Question

1) 3 (x - 2) - (x - 1) = 10
g) 6 ( 4 – a ) - 12 = - 5 ( 2a + 4)
h) 2y – 4 ( 2y - 1) = 3 ( 5y - 3) -8
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Answer 1

3.(X-2) -(+X -1) = 10

3X -6 -X -1 = 10

3X -X -6 -1 = 10

2X -7 = 10

2X = 10 + 7

2X = 17

X = 17/2

X =8,5

g)

24 -6a -12 = -10a -20

-6a + 10a = -20 -24

4a = -44

a = -44/4

a = -11

h)

2y - 8y + 4 = 15y - 9 - 8

-6y + 4 = 15y - 17

4 + 17 = 15y - 6y

21 = 9y

21/9 = y

2,3 = y