We want to solve this equation for $x$x.
What operation can we apply to the equation $x-5=4$x−5=4 so that $x$x is by itself?
Subtract $4$4 from both sides of the equation.
Add $4$4 to both sides of the equation.
Subtract $5$5 from both sides of the equation.
Add $5$5 to both sides of the equation.
Solve: $21=x+13$21=x+13
Find the value of $t$t when $t-15=0$t−15=0.
Find the value of $x$x where:
$x-7=7$x−7=7