Solving One-Step Linear Equations with Fractions
Some linear equations can be solved with a single operation. For this type of equation, use the inverse operation to solve. The easiest type involves only an addition or a subtraction.
Example :
Solve.
The inverse operation of addition is subtraction. So, subtract 
from both sides.
Simplify.
Also, we can solve linear equations when only multiplication or division is involved. If there's a coefficient in front of the variable, multiply by the reciprocal of that number to get a coefficient of 1.
Example 1:
Solve.
The inverse operation of division is multiplication. So, multiply both sides by 4.
Simplify.
y = 1200
Example 2:
Solve.
To isolate the variable x (to get a coefficient of 1), multiply both sides by 
which is the reciprocal of 
.
Simplify.
