Question

A) 2x+x=7-11x ajuda pf rapido B) -1 (x+4)=3 (x+5) C)x/3+2=8

Answer 1

A)

$2x + x = 7 - 11x \\ 3x = 7 - 11x \\ 14x = 7 \\ x = \frac{1}{2}$

B)

$- 1(x + 4) = 3 \\ - x - 4 = 3 \\ - x = 7 \\ x = - 7$

C)

$\frac{x}{3} + 2 = 8 \\ \frac{x}{3} = 6 \\ x = 6 \times 3 = 18$