Question

0.2 + 3(4x + 0.5)= 0.6 + 7x

Answer 1

0.2 + 3(4x+0.5) = 0.6 + 7x
0.2 + 12x + 1.5 = 0.6 + 7x
1.7 + 12x = 0.6 + 7x
1.7 - 0.6 = 7x - 12x
1.1 = -5x
x = 1.1 / -5
x = 0.22