How do you do 20x+15=25x+19

x = - 4/5 or - 0.8 (decimal form).

Step-by-step explanation:

20x+15=25x+19

Simplifying

20x + 15 = 25x + 19

Reorder the terms:

15 + 20x = 25x + 19

Reorder the terms:

15 + 20x = 19 + 25x

Solving

15 + 20x = 19 + 25x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-25x' to each side of the equation.

15 + 20x + - 25x = 19 + 25x + - 25x

Combine like terms: 20x + - 25x = - 5x

15 + - 5x = 19 + 25x + - 25x

Combine like terms: 25x + - 25x = 0

15 + - 5x = 19 + 0

15 + - 5x = 19

Add '-15' to each side of the equation.

15 + - 15 + - 5x = 19 + - 15

Combine like terms: 15 + - 15 = 0

0 + - 5x = 19 + - 15

-5x = 19 + - 15

Combine like terms: 19 + - 15 = 4

-5x = 4

Divide each side by '-5'.

x = - 0.8

Simplifying

x = - 0.8

-0.8

Step-by-step explanation:

20x+15=25x+19

-25x - 25x

-5x+15=19

-15 - 15

-5x=4

4/-5

x=-0.8