Algebra

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I need some help solving this system of equations:

5x - y = 18
–4x – 2y = –6

• Algebra -

I would use substitution, from the 1st:
y = 5x-18
sub into the 2nd:

-4x - 2(5x-18) = -6
-4x - 10x + 36 = -6
-14x = -42
x = 3
y = 5(3)-18 = -3

x=3 , y = -3

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