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OpenStudy (anonymous):
2x - 4y = -16 6x - 2y = 20 Solve the following systems using substitution.
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OpenStudy (freckles):
Solve the first equation for 2x. Then replace 2x in the second equation and solve it for y. 3(2x)-2y=20 replace that 2x in that paranthesis with whatever you find 2x to be from that first equation.
OpenStudy (freckles):
What do you get 2x to be in the first equation 2x-4y=-16 to solve this for 2x you do what?
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