Question

X-3 supra 2 -2x+3supra 3 = 7x-3supra 12​.

Answer 1

Răspuns:

$\frac { x - 3 } { 2 } - \frac { 2 x + 3 } { 3 } = \frac { 7 x - 3 } { 12 }$

$6\left(x-3\right)-4\left(2x+3\right)=7x-3$

$6x-18-4\left(2x+3\right)=7x-3$

$-2x-18-12=7x-3$

$-2x-30=7x-3$

$-2x-30-7x=-3$

$-9x-30=-3$

$-9x=-3+30$

$-9x=27$

$x=\frac{27}{-9}$

$x=-3$