solve for x and y by substitution method 3x-y=3 7x+2y=20
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Answered by
1
Rearrange this equation.
3x-y=3
-y=3-3x
y=-3+3x
Sub that into 7x+2y=20
7x+2(-3+3x)=20
7x-6+6x=20
13x=20+6
13x=26
x=2
Sub x=2 into 3x-y=3
3(2)-y=3
6-y=3
-y=3-6
-y=-3
y=3
Therefore, x=2 and y=3. I hope this helps!
Answered by
0
Answer is x=2 and y=3
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