Question

Ecuaciones:
X + 12= 166
X : 5 +3=68
2 . X + 9 - 6=51
Gracias!

Answer 1

x+12=166
x=166-12
x=154

x:5+3=68
x/5 =68-3
x/5 =65
x=65/5
x=13

2.x+9-6=51
2x+3=51
2x=51-3
2x=48
x=48/2
x=24