7z^2+4=1579

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Solution for 7z^2+4=1579 equation:


Simplifying
7z2 + 4 = 1579

Reorder the terms:
4 + 7z2 = 1579

Solving
4 + 7z2 = 1579

Solving for variable 'z'.

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

Add '-4' to each side of the equation.
4 + -4 + 7z2 = 1579 + -4

Combine like terms: 4 + -4 = 0
0 + 7z2 = 1579 + -4
7z2 = 1579 + -4

Combine like terms: 1579 + -4 = 1575
7z2 = 1575

Divide each side by '7'.
z2 = 225

Simplifying
z2 = 225

Take the square root of each side:
z = {-15, 15}

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