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Solve by elimination: 4x+9y=28 -4x-y=-28
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2 votes
Solve by elimination:
4x+9y=28
-4x-y=-28

User Ruhrpottpatriot
by
4.4k points

1 Answer

7 votes

Explanation:

4x+9y=28

-4x-y=-28

8y=0

divide both side by 8

y=0

solve for X in equation 1

4(X)-9(0)=28

4x-0=28

4x =28

divide both side by 4

4x/4=28/4

X= 7

y=0,x=7

User Yuriy Kolbasinskiy
by
4.2k points
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