16x+21=15x+18

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Solution for 16x+21=15x+18 equation:


Simplifying
16x + 21 = 15x + 18

Reorder the terms:
21 + 16x = 15x + 18

Reorder the terms:
21 + 16x = 18 + 15x

Solving
21 + 16x = 18 + 15x

Solving for variable 'x'.

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

Add '-15x' to each side of the equation.
21 + 16x + -15x = 18 + 15x + -15x

Combine like terms: 16x + -15x = 1x
21 + 1x = 18 + 15x + -15x

Combine like terms: 15x + -15x = 0
21 + 1x = 18 + 0
21 + 1x = 18

Add '-21' to each side of the equation.
21 + -21 + 1x = 18 + -21

Combine like terms: 21 + -21 = 0
0 + 1x = 18 + -21
1x = 18 + -21

Combine like terms: 18 + -21 = -3
1x = -3

Divide each side by '1'.
x = -3

Simplifying
x = -3

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