Question

Equação do primeiro grau

X-2(x-1)=4-3(x-2)

Answer 1

Resposta:

X = 4

Explicação :

$x-2\left(x-1\right)=4-3\left(x-2\right)\\\\x-2x+2=4-3\left(x-2\right)\\\\-x+2=4-3\left(x-2\right)\\\\-x+2=-3x+10\\\\-x+2-2=-3x+10-2\\\\-x=-3x+8\\\\-x+3x=-3x+8+3x\\\\2x=8\\\\\frac{2x}{2}=\frac{8}{2}\\\\x=4$

Número 4:

$4 - 3(x-2) : -3x +10\\\\4-3\left(x-2\right)\\\\4-3x+6\\\\-3x+10$