X+42=83-27; x:9=600:100; 28:x=400:100; x-(25+19)=36

Question

X+42=83-27; x:9=600:100; 28:x=400:100; x-(25+19)=36

Answer 1

×+42=83-27
×+42=56
×=56-42
×=14
×÷9=600÷100
×÷9=6
×=9×6
×=54
28÷×=400÷100
28÷×=4
×=28÷4
×=12
×-(25+19)=36
×-44=36
×=36+44
×=80