Answer:
x = -20
Step-by-step explanation:
1st Subtract 8 from both sides: 84/5(15+2x)-8=-12-8
2nd Simplify: 4/5(15+2x)=-20
3rd Multiply both sides by 5: 5×4/5(15+2x)=5(-20)
4th Simplify: 4(15+2x)=-100
5th Divide both sides by 4: 4(15+2x)÷4=-100÷4
6th Simplify: 15+2x=-25
7th Subtract 15 from both sides: 15+2x-15=-25-15
8th Simplify: 2x= -40
9th Divide both sides by 2: 2x÷2=-40÷2
10th Simplify: x = -20
