Substitution. (6 points) 3x + 2y = 11 y = 5x - 1 {show work}

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asked Jun 28, 2019 193k views

5 votes

Substitution. (6 points)
3x + 2y = 11
y = 5x - 1

{show work}

Mathematics
high-school

Jnrbsn asked

by Jnrbsn

7.8k points

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1 Answer

4 votes

3x+2y=11
y=5x-1

Substitute the y in the first equation:
3x+2(5x-1)=11
y=5x-1

3x+10x-2=11
y=5x-1

13x=13
y=5x-1

Now substitute the x to find the y:
x=1
y=5-1=4

Beniton Fernando answered Jul 1, 2019

by Beniton Fernando

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