11.A Multiply by m+x: nx=m+x
Subtract x: nx−x=m
Factor: x(n−1) =m
Divide by (n−1): x
m
n
=
− 1
nx
mx+
10.7/6 or 1.16 or 1.17 Begin by subtracting 2/3 = 1
from both sides and adding −1/6 to both sides, to
simplify. This gives. Just “reciprocate”
both sides or cross-multiply.
6
7
1
=
x
282 MCGRAW-HILL’S SAT