66=5x+6+4x+15

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Solution for 66=5x+6+4x+15 equation:


Simplifying
66 = 5x + 6 + 4x + 15

Reorder the terms:
66 = 6 + 15 + 5x + 4x

Combine like terms: 6 + 15 = 21
66 = 21 + 5x + 4x

Combine like terms: 5x + 4x = 9x
66 = 21 + 9x

Solving
66 = 21 + 9x

Solving for variable 'x'.

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

Add '-9x' to each side of the equation.
66 + -9x = 21 + 9x + -9x

Combine like terms: 9x + -9x = 0
66 + -9x = 21 + 0
66 + -9x = 21

Add '-66' to each side of the equation.
66 + -66 + -9x = 21 + -66

Combine like terms: 66 + -66 = 0
0 + -9x = 21 + -66
-9x = 21 + -66

Combine like terms: 21 + -66 = -45
-9x = -45

Divide each side by '-9'.
x = 5

Simplifying
x = 5

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