How do you solve for x?
a - c
-------- = m
x - a
a - c
-------- = m
x - a
a - c = m(x - a) {multiplied both sides by x - a}
a - c = mx - ma {used distributive property}
a - c + ma = mx {added ma to both sides}
a - c + ma
--------------- = x {divided both sides by m}
m
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