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Tarzan
Mathematics
28 February, 22:29
Which expression is equivalent to 4x+20?
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Carl Bates
28 February, 22:35
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4x+20=
6x-10
Step-by-step explanation:
Simplifying: 4x + 20 = 6x + - 10
Reorder the terms: 20 + 4x = 6x + - 10
Reorder the terms: 20 + 4x = - 10 + 6x
Solving: 20 + 4x = - 10 + 6x
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-6x' to each side of the equation: 20 + 4x + - 6x = - 10 + 6x + - 6x
Combine like terms: 4x + - 6x = - 2x: 20 + - 2x = - 10 + 6x + - 6x
Combine like terms: 6x + - 6x = 0: 20 + - 2x = - 10 + 0: 20 + - 2x = - 10
Add '-20' to each side of the equation: 20 + - 20 + - 2x = - 10 + - 20
Combine like terms: 20 + - 20 = 0: 0 + - 2x = - 10 + - 20: - 2x = - 10 + - 20
Combine like terms: - 10 + - 20 = - 30: - 2x = - 30
Divide each side by '-2': x = 15
Simplifying: x = 15
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