7x+4=5x +20 solve equation step by step
Answers
Answer:
7x+4=5x+20
=> 7x-5x=20-4
=> 2x=16
=> x=16/2=8
=> x=8
Answer:
implifying
7x + -4 = 5x + 20
Reorder the terms:
-4 + 7x = 5x + 20
Reorder the terms:
-4 + 7x = 20 + 5x
Solving
-4 + 7x = 20 + 5x
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-5x' to each side of the equation.
-4 + 7x + -5x = 20 + 5x + -5x
Combine like terms: 7x + -5x = 2x
-4 + 2x = 20 + 5x + -5x
Combine like terms: 5x + -5x = 0
-4 + 2x = 20 + 0
-4 + 2x = 20
Add '4' to each side of the equation.
-4 + 4 + 2x = 20 + 4
Combine like terms: -4 + 4 = 0
0 + 2x = 20 + 4
2x = 20 + 4
Combine like terms: 20 + 4 = 24
2x = 24
Divide each side by '2'.
x = 12
Simplifying
x = 12
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Step-by-step explanation: