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eimsori [14]
3 years ago
9

Solve the following system of equations using SUBSTITUTION METHOD.

Mathematics
1 answer:
Kaylis [27]3 years ago
6 0
Multiply the 1st row by 3
3x−12y=−3
3x+2y=39
​
Subtract the 2nd row from the 1st row.
−14y=−42

Solve for y (-14y=-42)

Divide both sides by −14.

Y= -42/-14

Two negatives make a positive.
Y=42/14

Simply 42/14 to 3
Y=3

Sub y=3 into both equations
3x-12x3=-3
X=11

Therefore,
X =11
Y=3
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