xsquared-4x=21

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Solution for xsquared-4x=21 equation:


Simplifying
xsquared + -4x = 21

Solving
adeqrsux + -4x = 21

Solving for variable 'a'.

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

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

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

Divide each side by 'deqrsux'.
a = 21d-1e-1q-1r-1s-1u-1x-1 + 4d-1e-1q-1r-1s-1u-1

Simplifying
a = 21d-1e-1q-1r-1s-1u-1x-1 + 4d-1e-1q-1r-1s-1u-1

Reorder the terms:
a = 4d-1e-1q-1r-1s-1u-1 + 21d-1e-1q-1r-1s-1u-1x-1

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