Question

18(x+14)=378
16(4x-26)=224
9(152-7x)=927

Answer 1

18х+252=378
18х=378-252
18х=126
х=7

64х-416=224
64х=224+416
64х=640
х=10

1368-63х=927
-63х=927-1368
-63х=-441
х=7