20-2×=100
3×-2×=600
2×-2-3=25
4×+3×+300=12×
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20-2X=100
2X=100-20
2X=80
X=40
3X-2X=600
X=600
2X-2-3=25
2X=25+2+3
2X=30
X=15
4X+3X+300=12X
4X+3X-12X=300
7X-12X=300
-5X=300
X=300÷ (-5)
X= - 60
2X=100-20
2X=80
X=40
3X-2X=600
X=600
2X-2-3=25
2X=25+2+3
2X=30
X=15
4X+3X+300=12X
4X+3X-12X=300
7X-12X=300
-5X=300
X=300÷ (-5)
X= - 60
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