1 )Expand.
4x−12=3x+6
2 )Add 12 to both sides.
4x=3x+6+12
3 )Simplify 3x+6+12 to 3x+18.
4x=3x+18
4 )Subtract 3x from both sides.
4x−3x=18
5 )Simplify 4x−3x to x.
x=18
________________________Check Answer_______________________
4(x−3)=3(x+2)
1)Let x=18.
4 × ( 18 − 3 ) = 3 × ( 18 + 2 )
2)Simplify 18 − 3 to 15.
4 × 15 = 3 × ( 18 + 2 )
3)Simplify 18 + 2 to 20.
4 × 15 = 3 × 20
4)Simplify 4 × 15 to 60.
60 = 3 × 20
5)Simplify 3 × 20 to 60.
60 = 60