SOLUTION: 4x-5y=20 complete the values x y o ? ? 0 -5 ? ? 4

Question 103689: 4x-5y=20
complete the values
x y
o ?
? 0
-5 ?
? 4
Answer by elima(1433) (Show Source): You can put this solution on YOUR website!
4x-5y=20
complete the values
x y
o ?
? 0
-5 ?
? 4
===========
4x-5y=20
x=0
4(0)-5y=20
-5y=20
y=-4
when x=0; y=-4
======================
y=0
4x-5(0)=20
4x=20
x=5
when y=0, x=5
====================
x=-5
4(-5)-5y=20
-20-5y=20
-5y=40
y=-8
when x=-5, y=-8
======================
y=4
4x-5(4)=20
4x-20=20
4x=40
x=10
when y=4, x=10
==================
:)
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