Question

Qual é a solução da equação?9 - 2x = 3(x - 2)​

Answer 1

Resposta:

$9 - 2x = 3(x - 2)\\\\9-2x=3x-6\\\\9-2x-9=3x-6-9\\\\-2x=3x-15\\\\-2x-3x=3x-15-3x\\\\-5x=-15\\\\\frac{-5x}{-5}=\frac{-15}{-5}\\\\x=3$

Answer 2

−2+9=3(−2)

−2+9=3−6

−2+9−9=3-6−9

−2=3−15

−2−3=3−15−3

−5=−15

X=-15/-5

X=3