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Simplifying
2z2 + 3 = 203
Reorder the terms:
3 + 2z2 = 203
Solving
3 + 2z2 = 203
Solving for variable 'z'.
Move all terms containing z to the left, all other terms to the right.
Add '-3' to each side of the equation.
3 + -3 + 2z2 = 203 + -3
Combine like terms: 3 + -3 = 0
0 + 2z2 = 203 + -3
2z2 = 203 + -3
Combine like terms: 203 + -3 = 200
2z2 = 200
Divide each side by '2'.
z2 = 100
Simplifying
z2 = 100
Take the square root of each side:
z = {-10, 10}
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