## Algebra 1

$x=7$
Add 10 to both sides to have: $3x+4+10=5x-10+10 \\3x+14=5x$ Subtract $3x$ from both sides to have: $3x+14-3x=5x-3x \\14=2x \\7=x$ Checking: $\begin{array}{ccc} \\3(7) +4 &\stackrel{?}{=}&5(7)-10 \\25 &\stackrel{\checkmark}{=}&25 \\\end{array}$