Answer:
x= 35
Step-by-step explanation:
5(x+20)=7x+30
Distribute 5 through the parenthesis
5x+100=7x+30
Move the variable sign to the left side and change its sign.
5x-7x+100=30
Move the constant to the right side and change its sign.
5x-7x=30-100
Collect like terms.
-2x=-70
Divide both sides of the equation by -2
x=35
