Answer:
x = 23/14
Step-by-step explanation:
Step 1: Distribute
9 + 6(10 - 7x)
9 + 6(10) + 6(-7x)
9 + 60 - 42x
69 - 42x
Step 2: Solve for x
Subtract 69 from both sides: 69 - 42x - 69 = 0 - 69
Divide both sides by -42: -42x / -42= -69 / -42
Simplify: x = 23/14