3x-5=(8x)(21)

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Solution for 3x-5=(8x)(21) equation:


Simplifying
3x + -5 = (8x)(21)

Reorder the terms:
-5 + 3x = (8x)(21)

Remove parenthesis around (8x)
-5 + 3x = 8x(21)

Reorder the terms for easier multiplication:
-5 + 3x = 8 * 21x

Multiply 8 * 21
-5 + 3x = 168x

Solving
-5 + 3x = 168x

Solving for variable 'x'.

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

Add '-168x' to each side of the equation.
-5 + 3x + -168x = 168x + -168x

Combine like terms: 3x + -168x = -165x
-5 + -165x = 168x + -168x

Combine like terms: 168x + -168x = 0
-5 + -165x = 0

Add '5' to each side of the equation.
-5 + 5 + -165x = 0 + 5

Combine like terms: -5 + 5 = 0
0 + -165x = 0 + 5
-165x = 0 + 5

Combine like terms: 0 + 5 = 5
-165x = 5

Divide each side by '-165'.
x = -0.0303030303

Simplifying
x = -0.0303030303

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