Question

equação c) 2x-4 = 12

Answer 1

Boa tarde!!

2x -4 = 12

2x = 12 +4

x = 16 / 2

x = 8

Bons estudos!

Answer 2

$\mathrm{2x-4=12}\\\\ \mathrm{2x=12+4}\\\\ \mathrm{2x=16}\\\\ \mathrm{x=\dfrac{16}{2}}\\\\ \boxed{\mathbf{x=8}}$