Question

a)x-100+x+10
b)x+5x+30
c)x+45-x-45
d)3x+30_5x-90

Answer 1

Oi

a) x - 100 + x + 10 = 2x - 90 

b) x + 5x + 30 = 6x + 30

c) x + 45 - x - 45 = 0

d) 3x + 30 - 5x - 90 = -2x - 60 

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