x + 15 ≥ 3(5 - 3x) + 3x
x + 15 ≥ 3(5 - 3x) + 3x
Answer
Explanation:
Step1: Expand the right - hand side
$x + 15\geq15 - 9x+3x$
Step2: Combine like terms on the right - hand side
$x + 15\geq15 - 6x$
Step3: Add 6x to both sides
$x+6x + 15\geq15-6x + 6x$ $7x + 15\geq15$
Step4: Subtract 15 from both sides
$7x+15 - 15\geq15 - 15$ $7x\geq0$
Step5: Divide both sides by 7
$x\geq0$
Answer:
$x\geq0$