solve for x.\n5(x - 10) = 30 - 15x\nx = 1\nx = 4\nx = 5\nx = 8

Explanation:

Step1: Expand the left side

$$5(x - 10)=5x-50$$ The equation becomes $5x - 50=30-15x$.

Step2: Add $15x$ to both sides

$$5x+15x - 50=30-15x + 15x$$ $$20x-50 = 30$$

Step3: Add $50$ to both sides

$$20x-50 + 50=30 + 50$$ $$20x=80$$

Step4: Divide both sides by $20$

$$x=\frac{80}{20}$$ $$x = 4$$

Answer:

$x = 4$ (the second option)