21x-3=4(x-10)

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Solution for 21x-3=4(x-10) equation:


Simplifying
21x + -3 = 4(x + -10)

Reorder the terms:
-3 + 21x = 4(x + -10)

Reorder the terms:
-3 + 21x = 4(-10 + x)
-3 + 21x = (-10 * 4 + x * 4)
-3 + 21x = (-40 + 4x)

Solving
-3 + 21x = -40 + 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.
-3 + 21x + -4x = -40 + 4x + -4x

Combine like terms: 21x + -4x = 17x
-3 + 17x = -40 + 4x + -4x

Combine like terms: 4x + -4x = 0
-3 + 17x = -40 + 0
-3 + 17x = -40

Add '3' to each side of the equation.
-3 + 3 + 17x = -40 + 3

Combine like terms: -3 + 3 = 0
0 + 17x = -40 + 3
17x = -40 + 3

Combine like terms: -40 + 3 = -37
17x = -37

Divide each side by '17'.
x = -2.176470588

Simplifying
x = -2.176470588

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