140-(x:7+29)×4=12 720:(5x-12)-56=34

Question

140-(x:7+29)×4=12
720:(5x-12)-56=34

Answer 1

140-(x:7+29)×4=12
(x:7+29)*4=140-12
(x:7+29)*4=128
x:7+29=128:4
x:7+29=32
x:7=32-29
x:7=3
x=3*7
x=21
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720:(5x-12)-56=34
720:(5x-12)=34+56
720:(5x-12)=90
5x-12=720:90
5x-12=8
5x=8+12
5x=20
x=20:5
x=4
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