Question

qual eh o valor
7x-6=3-5x?
4x-15=12-5x?
4(x-5)=(x-2)?

Answer 1

$1) \ 7x-6=3-5x \\\\ 7x+5x=3+6 \\\\ 12x=9 \\\\ x= \frac{\not9}{\not12} \\\\ \boxed{x=\frac{3}{4}}$

$2) \ 4x-15=12-5x \\\\ 4x+5x=12+15 \\\\ 9x=27 \\\\ x=\frac{\not27}{\not9} \\\\ \boxed{x=3}$

$3) \ 4(x-5)=(x-2) \\\\ 4x-20=x-2 \\\\ 4x-x=-2+20 \\\\ 3x=18 \\\\ x=\frac{\not18}{\not3} \\\\ \boxed{x=6}$