5x+16=7x+21

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Solution for 5x+16=7x+21 equation:


Simplifying
5x + 16 = 7x + 21

Reorder the terms:
16 + 5x = 7x + 21

Reorder the terms:
16 + 5x = 21 + 7x

Solving
16 + 5x = 21 + 7x

Solving for variable 'x'.

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

Add '-7x' to each side of the equation.
16 + 5x + -7x = 21 + 7x + -7x

Combine like terms: 5x + -7x = -2x
16 + -2x = 21 + 7x + -7x

Combine like terms: 7x + -7x = 0
16 + -2x = 21 + 0
16 + -2x = 21

Add '-16' to each side of the equation.
16 + -16 + -2x = 21 + -16

Combine like terms: 16 + -16 = 0
0 + -2x = 21 + -16
-2x = 21 + -16

Combine like terms: 21 + -16 = 5
-2x = 5

Divide each side by '-2'.
x = -2.5

Simplifying
x = -2.5

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