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What is the answer to: y=-2x-5,4x+3y=15 using substitution to solve it..??

What is the answer to: y=-2x-5,4x+3y=15 using substitution to solve it..??
asked 75.1k views
9 votes
What is the answer to: y=-2x-5,4x+3y=15 using substitution to solve it..??

asked
User Gingerbreadboy
by
7.9k points

1 Answer

14 votes

Answer:

Explanation:

Plug the first equation into the second


4x+3(-2x-5)=15\\4x-6x-15=15\\-2x=30\\x=-15

y=-2(-15)-5

=30-5

=25

answered
User Matias Rasmussen
by
8.4k points
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