10x+21=5x+4

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Solution for 10x+21=5x+4 equation:


Simplifying
10x + 21 = 5x + 4

Reorder the terms:
21 + 10x = 5x + 4

Reorder the terms:
21 + 10x = 4 + 5x

Solving
21 + 10x = 4 + 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.
21 + 10x + -5x = 4 + 5x + -5x

Combine like terms: 10x + -5x = 5x
21 + 5x = 4 + 5x + -5x

Combine like terms: 5x + -5x = 0
21 + 5x = 4 + 0
21 + 5x = 4

Add '-21' to each side of the equation.
21 + -21 + 5x = 4 + -21

Combine like terms: 21 + -21 = 0
0 + 5x = 4 + -21
5x = 4 + -21

Combine like terms: 4 + -21 = -17
5x = -17

Divide each side by '5'.
x = -3.4

Simplifying
x = -3.4

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