1) Subtract 2X from both sides: -4=3X+8Subtract 8 from both sides: -12=3XDivide by 3: X=-4
2) Subtract 13X from both sides: 2X+21=-9Subtract 21 from both sides: 2X=-30Divide by 2: X=-15
1) Subtract 2X from both sides: -4=3X+8
Subtract 8 from both sides: -12=3X
Divide by 3: X=-4
2) Subtract 13X from both sides: 2X+21=-9
Subtract 21 from both sides: 2X=-30
Divide by 2: X=-15