4x-5(-5)=21

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


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

Multiply -5 * -5
4x + 25 = 21

Reorder the terms:
25 + 4x = 21

Solving
25 + 4x = 21

Solving for variable 'x'.

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

Add '-25' to each side of the equation.
25 + -25 + 4x = 21 + -25

Combine like terms: 25 + -25 = 0
0 + 4x = 21 + -25
4x = 21 + -25

Combine like terms: 21 + -25 = -4
4x = -4

Divide each side by '4'.
x = -1

Simplifying
x = -1

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