# How do you solve 5(x+3)=7#?

##### 1 Answer

Feb 21, 2017

#### Explanation:

distribute the bracket on the left side of the equation.

#rArr5x+15=7# Isolate 5x by subtracting 15 from both sides of the equation.

#5xcancel(+15)cancel(-15)=7-15#

#rArr5x=-8# To solve for x, divide both sides by 5

#(cancel(5) x)/cancel(5)=(-8)/5#

#rArrx=-8/5#

#color(blue)"As a check"# Substitute this value into the left side of the equation and if equal to the right side then it is the solution.

#5(color(red)(-8/5)+3)=cancel(5)^1xx-8/cancel(5)^1+(5xx3)=-8+15=7#

#rArrx=-8/5" is the solution"#