9x-1=4(x+5)

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Solution for 9x-1=4(x+5) equation:


Simplifying
9x + -1 = 4(x + 5)

Reorder the terms:
-1 + 9x = 4(x + 5)

Reorder the terms:
-1 + 9x = 4(5 + x)
-1 + 9x = (5 * 4 + x * 4)
-1 + 9x = (20 + 4x)

Solving
-1 + 9x = 20 + 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
-1 + 9x + -4x = 20 + 4x + -4x

Combine like terms: 9x + -4x = 5x
-1 + 5x = 20 + 4x + -4x

Combine like terms: 4x + -4x = 0
-1 + 5x = 20 + 0
-1 + 5x = 20

Add '1' to each side of the equation.
-1 + 1 + 5x = 20 + 1

Combine like terms: -1 + 1 = 0
0 + 5x = 20 + 1
5x = 20 + 1

Combine like terms: 20 + 1 = 21
5x = 21

Divide each side by '5'.
x = 4.2

Simplifying
x = 4.2

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