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Aylin Bolton
21 January, 16:03
How do you do 20x+15=25x+19
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Jon Larson
21 January, 16:31
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-0.8
Step-by-step explanation:
20x+15=25x+19
-25x - 25x
-5x+15=19
-15 - 15
-5x=4
4/-5
x=-0.8
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Jimmy Sawyer
21 January, 16:45
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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
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