3(4-3x)=7x
12 - 9x = 7x
12 = 7x + 9x
12 = 16x
x = 12/16
x = 0.75
Bonsoir
3(4-3X)=7x
12-9X=7X
12=7X+9X
12=16X
X=12/16=3/4