Answer:
Step-by-step explanation:
Add like terms. 3x & 7x are like terms
3x +7x - 2 = 10x - 2
0.2
3x+7x-2
3x+7x-2=0
3x+7x=2
10x=2
x=2/10
x=[tex]\frac{1}{5}[/tex]