Answer:
b
Explanation:
given
6x + 30 + 4x = 10(x + 3) ← collect like terms on left side
10x + 30 = 10(x + 3) ← distribute parenthesis by 10
10x + 30 = 10x + 30
since both sides are the same , then any value of x will make the equation true.
The equation has infinitely many solutions