Question

2) Calcule:
a) 9x - 2 = 8x - 4
b) 7 -2x = -5x - 11
c) 5x - 13 = 2x + 5
d) 5x - 4 = 3x + 12


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Answer 1

2)

a)9x - 2 = 8x - 4

9x - 8x = - 4 + 2 =

x= - 2

b)7 - 2x = -5x - 11

- 2x + 5x = - 11 - 7

3x= - 18

x = - 6

c)5x - 13 = 2x + 5

5x - 2x = 5 + 13

3x = 18

x = 6

d)5x - 4 = 3x + 12

5x - 3x = 12 + 4

2x = 16

x = 8