Solve the following system of linear equations using elimination. 3x+y=8 -3x+6y=27
1 answer:
Answer:
x=1 and y=5
BRAINLIEST PLZZZ
Step-by-step explanation:
Let's solve your system by elimination.
3x+y=8;−3x+6y=27
3x+y=8
−3x+6y=27
Add these equations to eliminate x:
7y=35
Then solve7y=35for y:
7y=35
7y
7
=
35
7
(Divide both sides by 7)
y=5
Now that we've found y let's plug it back in to solve for x.
Write down an original equation:
3x+y=8
Substitute5foryin3x+y=8:
3x+5=8
3x+5+−5=8+−5(Add -5 to both sides)
3x=3
3x
3
=
3
3
(Divide both sides by 3)
x=1
Answer:
x=1 and y=5
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Step-by-step explanation:
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