7x+4y=14
y=6x-12
Reorder:
-6x+y=-12
Multiply bottom one by 4:
4(-6x+y=-12)
=>
-24x+4y=-48
Combine/Eliminate:
-17x=-34
/-17 /-17
x=2
Plug x back in to one of the equations:
y=6(2)-12=12-12=0
Answer:
x=2, y=0
x = 2
y = 0
Explanation:
To solve by elimination, you have to first change the equations so that you can cancel out one variable.
Change the second one.
4y = 24x - 48
Subtract them:
7x = -24x + 62
31x = 62
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