slove :2x +3y-10,y=5-3/2x
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2x+3(5-3/2x)-10
=2x+15-9/2x-10
=2x+15-2x/9-10
=2x+15-2x ×1/9 -10
=15-0×1/9-10
=15-10
=5
=2x+15-9/2x-10
=2x+15-2x/9-10
=2x+15-2x ×1/9 -10
=15-0×1/9-10
=15-10
=5
johad1:
thanx
for help
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