SAT Mc Graw Hill 2011

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