8(х-9)+5х=32 2(3х+1)+3=35 2(6х+8)-3х=313

Question

8(х-9)+5х=32
2(3х+1)+3=35
2(6х+8)-3х=313

Answer 1

8(x-9)+5x=32
8x-72+5x=32
13x=72+32=104
x=104:13=8

2(3x+1)+3=35
6x+2+3=35
6x= 30
x=30:6=5

2(6x+8)-3x=313
12x+16-3x=313
9x=297
x=297:9=33