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Solving One-Step Equations

a
To solve the equation we have to isolate on one side. By adding to both sides of the equality, will be standing alone on the left-hand side.
b
To solve the equation we have to isolate on one side. Thus, we want to cancel out by subtracting it from both sides.
To subtract the fractions they need to have the same denominator. Here, the lowest common denominator is
c
To isolate we want to multiply both sides with as it's the inverse operation of dividing by