Sagot :
5x + 18 + 2x = 3x + 42
5x + 2x - 3x = 42 - 18
4x = 24
x = 6
5x + 2x - 3x = 42 - 18
4x = 24
x = 6
5x+18+2x = 3x+427x+18=3x+42
7x-3x=42-18
4x=24
and divided for 4.
the answer is x=6
7x-3x=42-18
4x=24
and divided for 4.
the answer is x=6