-(7+21x)+(5+4x)=7

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Solution for -(7+21x)+(5+4x)=7 equation:


Simplifying
-1(7 + 21x) + (5 + 4x) = 7
(7 * -1 + 21x * -1) + (5 + 4x) = 7
(-7 + -21x) + (5 + 4x) = 7

Remove parenthesis around (5 + 4x)
-7 + -21x + 5 + 4x = 7

Reorder the terms:
-7 + 5 + -21x + 4x = 7

Combine like terms: -7 + 5 = -2
-2 + -21x + 4x = 7

Combine like terms: -21x + 4x = -17x
-2 + -17x = 7

Solving
-2 + -17x = 7

Solving for variable 'x'.

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

Add '2' to each side of the equation.
-2 + 2 + -17x = 7 + 2

Combine like terms: -2 + 2 = 0
0 + -17x = 7 + 2
-17x = 7 + 2

Combine like terms: 7 + 2 = 9
-17x = 9

Divide each side by '-17'.
x = -0.5294117647

Simplifying
x = -0.5294117647

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