Question

Preciso so das B e C, por favoorr me ajudem

Answer 1

a) $3+2x=13$

$2x=13-3$

$2x=10$

$x=\frac{10}{2}$

$x=5$

b) $a+5=15$

$a=15-5$

$a=10$

c) $6+3x=x-14$

$3x-x=-14-6$

$2x=-20$

$x=-\frac{20}{2}$

$x=-10$