Question

a)9x-2=4x+18
b)2x-10+7x+10=180

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Answer 1

Resposta:

Explicação passo-a-passo:

A)9x-2=4x+18

9x - 4x= 18+2

5x = 20

X = 20/5

X = 4

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b)2x-10+7x+10=180

9x = 180

X = 180/9

X = 20