Question

3x – 6 + x = 44 – (7.2)
5.(x-4) + 57 = 6.12 – 2x

resposta dessas contas ​

Answer 1

Resposta:

$3x – 6 + x = 44- (7.2) \\ 4x = 6 + 44 - 14 \\ 4x = 36 \\ x = \frac{36}{4} \\ x = 9$

$5.(x-4) + 57 = 6.12 - 2x \\ 5x - 20 + 2x = - 57 + 6.12 \\ 7x = 20 - 57 + 72 \\ 7x = 35 \\ x= \frac{35}{7} \\ x = 5$

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