SOLUTION: solve each equation by using the substitution method and the elimination method 2x+3y=0 4x+12=9y

SOLUTION: solve each equation by using the substitution method and the elimination method 2x+3y=0 4x+12=9y

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Question 348530: solve each equation by using the substitution method and the elimination method
2x+3y=0
4x+12=9y
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Substitution:
1.
2.
From eq. 1,

Substitute into eq. 2,

Then from eq. 1,

.
.
.
Elimination:
1.
2.
Multiply eq. 1 by 3 and add the equations together,

Then from eq. 1,

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