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Given the equations 9x+3/4y=6 and 2x+1/2y=9 by what factor would you multiply the second equation to eliminate y and solve the system through linear combinations? A.-4/3 B.-3/4 C.-3/2 D.-7/2
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Given the equations 9x+3/4y=6 and 2x+1/2y=9 by what factor would you multiply the second equation to eliminate y and solve the system through linear

combinations?

A.-4/3
B.-3/4
C.-3/2
D.-7/2

User Pkoch
by
8.6k points

1 Answer

4 votes
eliinate y
3/4 and 1/2
we likes whole numbers
we need to multiply 2nd to get first
1/2 tiems what=3/4
times both sides by 2/1 to cleae fraction
2/2 times what=6/4
what=3/2

you have to make it negative
-3/2

C is answer
User Alexandru Barbarosie
by
7.5k points
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