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\[2x-y=7\]
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"(x+1)/2+4=7"
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2x-y=7
2x-y=7
2x-y=7
Solving for x. Want to
solve for y
instead?
1
Add
y
y
y
to both sides.
2
x
=
7
+
y
2x=7+y
2
x
=
7
+
y
2
Divide both sides by
2
2
2
.
x
=
7
+
y
2
x=\frac{7+y}{2}
x
=
2
7
+
y
Done
x=(7+y)/2
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