3 (x+5) = x+19 how do you solve
Mathematics · Middle School · Tue Nov 03 2020
Answered on
In order to solve this equation, firstly we will multiply 3 with the digits inside the bracket. The sign will not change because 3 is a positive number larger than 0.
So we will have:
3x+15=x+19
Lets put unknown values of x on one side and the numbers on the other side of the equation. The numbers and x-s that will change sides, will have their sign changed from + to - and vice versa.
3x-x=19-15
2x=4
Divide both sides with 2.
2x/2 = 4/2
x=2