(8x+1)-(3x+21)=

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Solution for (8x+1)-(3x+21)= equation:


Simplifying
(8x + 1) + -1(3x + 21) = 0

Reorder the terms:
(1 + 8x) + -1(3x + 21) = 0

Remove parenthesis around (1 + 8x)
1 + 8x + -1(3x + 21) = 0

Reorder the terms:
1 + 8x + -1(21 + 3x) = 0
1 + 8x + (21 * -1 + 3x * -1) = 0
1 + 8x + (-21 + -3x) = 0

Reorder the terms:
1 + -21 + 8x + -3x = 0

Combine like terms: 1 + -21 = -20
-20 + 8x + -3x = 0

Combine like terms: 8x + -3x = 5x
-20 + 5x = 0

Solving
-20 + 5x = 0

Solving for variable 'x'.

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

Add '20' to each side of the equation.
-20 + 20 + 5x = 0 + 20

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

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

Divide each side by '5'.
x = 4

Simplifying
x = 4

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