Question

13x+15x =20 solve equation​

Answer 1

$\huge \rm \color {red} \: answer$

-13x-16=-15x+20

We move all terms to the left:

-13x-16-(-15x+20)=0

We get rid of parentheses

-13x+15x-20-16=0

We add all the numbers together, and all the variables

2x-36=0

We move all terms containing x to the left, all other terms to the right

2x=36

x=36/2

x=18

Answer 2

Answer:

x = 5/7

Step-by-step explanation:

13x+ 15x = 20

28x = 20

x = 20/28

x = 5/7