15x+6=19x+21

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Solution for 15x+6=19x+21 equation:


Simplifying
15x + 6 = 19x + 21

Reorder the terms:
6 + 15x = 19x + 21

Reorder the terms:
6 + 15x = 21 + 19x

Solving
6 + 15x = 21 + 19x

Solving for variable 'x'.

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

Add '-19x' to each side of the equation.
6 + 15x + -19x = 21 + 19x + -19x

Combine like terms: 15x + -19x = -4x
6 + -4x = 21 + 19x + -19x

Combine like terms: 19x + -19x = 0
6 + -4x = 21 + 0
6 + -4x = 21

Add '-6' to each side of the equation.
6 + -6 + -4x = 21 + -6

Combine like terms: 6 + -6 = 0
0 + -4x = 21 + -6
-4x = 21 + -6

Combine like terms: 21 + -6 = 15
-4x = 15

Divide each side by '-4'.
x = -3.75

Simplifying
x = -3.75

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