slove the following 7y+4÷y+2 =-4÷3
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(7y+4)/(y+2)=-4/3
3(7y+4)=-4(y+2)
21y+12=-4y-8
21y+4y=-8-12
25y=-20
y=-20/25
y=-4/5
verification:
[7(-4/5)+4]/[(-4/5)+2]=-4/3
(-28/5+4)/(-4/5+2)=-4/3
[(-28+20)/5]/[(-4+10)/5]=-4/3
(-8/5)/(6/5)=-4/3
(-8/5)×(5/6)=-4/3
-4/3=-4/3
∴L.H.S=R.H.S
3(7y+4)=-4(y+2)
21y+12=-4y-8
21y+4y=-8-12
25y=-20
y=-20/25
y=-4/5
verification:
[7(-4/5)+4]/[(-4/5)+2]=-4/3
(-28/5+4)/(-4/5+2)=-4/3
[(-28+20)/5]/[(-4+10)/5]=-4/3
(-8/5)/(6/5)=-4/3
(-8/5)×(5/6)=-4/3
-4/3=-4/3
∴L.H.S=R.H.S
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