16x-21=12x-15

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Solution for 16x-21=12x-15 equation:


Simplifying
16x + -21 = 12x + -15

Reorder the terms:
-21 + 16x = 12x + -15

Reorder the terms:
-21 + 16x = -15 + 12x

Solving
-21 + 16x = -15 + 12x

Solving for variable 'x'.

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

Add '-12x' to each side of the equation.
-21 + 16x + -12x = -15 + 12x + -12x

Combine like terms: 16x + -12x = 4x
-21 + 4x = -15 + 12x + -12x

Combine like terms: 12x + -12x = 0
-21 + 4x = -15 + 0
-21 + 4x = -15

Add '21' to each side of the equation.
-21 + 21 + 4x = -15 + 21

Combine like terms: -21 + 21 = 0
0 + 4x = -15 + 21
4x = -15 + 21

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

Divide each side by '4'.
x = 1.5

Simplifying
x = 1.5

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