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# Solving One-Step Equations

## Solving One-Step Equations 1.4 - Solution

a
Solve the equation by adding $10$ to both sides. This way, we'll get $x$ isolated on the left-hand side.
$x - 10 = 27$
$x = 37$
The solution to the equation is $x=37.$
b
On the left-hand side of the equation we have $5y.$ Therefore, to isolate $y$ we need to divide both sides by $5.$
$5y = 20$
$y = 4$
c
On the left-hand side of the equation, we have $\frac{z}{3}.$ If we multiply both sides by $3,$ we can isolate $z.$
$\dfrac{z}{3} = 7$
$\dfrac{z}{3} \cdot 3 = 7 \cdot 3$
$z = 7 \cdot 3$
$z = 21$