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OpenStudy (anonymous):
Solve for x and y. x + 4 = 2y x – 7 = 3
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OpenStudy (acxbox22):
might as well use yahoo for answers
OpenStudy (anonymous):
is there no y in the second one?
OpenStudy (anonymous):
\[x + 4 = 2y\\ x – 7 = 3\] or \[x + 4 = 2y \\x – 7y = 3\]
OpenStudy (anonymous):
x-7=3 add 7 to both sides: x=10 x + 4 = 2y substitute 10 in where x is: 10+4=2y so,14=2y then, divide both sides by 2 7=y
OpenStudy (anonymous):
so x=10 and y=7
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