Lovergirl13
26.02.2021 •
Mathematics
Y = x + 8
4x – 2y = -12
Solved
Show answers
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Ответ:
x = 14
y = 22
Step-by-step explanation:
y = x + 8
4x - 2y = -12
Solve
Since we see that the first equation has y alone, we can substitute it into the values of y in the second equation.
4x - 2(x + 8) = -12
Distribute :
4x - (2(x) + 2(8)) = -12
4x - 2x +16 = -12
Combine like terms :
2x + 16 = -12
Subtract 16 from both sides :
2x = -28
Divide 2 from both sides to get x alone :
x = 14
Now that we know what x is, substitute it in the first equation to get y :
y = (14) + 8
y = 22
Ответ: