9x+4=8(x+1)-1

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Solution for 9x+4=8(x+1)-1 equation:


Simplifying
9x + 4 = 8(x + 1) + -1

Reorder the terms:
4 + 9x = 8(x + 1) + -1

Reorder the terms:
4 + 9x = 8(1 + x) + -1
4 + 9x = (1 * 8 + x * 8) + -1
4 + 9x = (8 + 8x) + -1

Reorder the terms:
4 + 9x = 8 + -1 + 8x

Combine like terms: 8 + -1 = 7
4 + 9x = 7 + 8x

Solving
4 + 9x = 7 + 8x

Solving for variable 'x'.

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

Add '-8x' to each side of the equation.
4 + 9x + -8x = 7 + 8x + -8x

Combine like terms: 9x + -8x = 1x
4 + 1x = 7 + 8x + -8x

Combine like terms: 8x + -8x = 0
4 + 1x = 7 + 0
4 + 1x = 7

Add '-4' to each side of the equation.
4 + -4 + 1x = 7 + -4

Combine like terms: 4 + -4 = 0
0 + 1x = 7 + -4
1x = 7 + -4

Combine like terms: 7 + -4 = 3
1x = 3

Divide each side by '1'.
x = 3

Simplifying
x = 3

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