Question

решите уравнения (3 х+5 х)*18=144

Answer 1

3х+5х=8х
8х=144:18
8х=8
х=8:8
х=1

Answer 2

(3x+5x)*18=144
8x*18=144
8x=144:8
8x=8
x=8:8
x=1