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Simplifying
5z2 + 3 = 1128
Reorder the terms:
3 + 5z2 = 1128
Solving
3 + 5z2 = 1128
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 + 5z2 = 1128 + -3
Combine like terms: 3 + -3 = 0
0 + 5z2 = 1128 + -3
5z2 = 1128 + -3
Combine like terms: 1128 + -3 = 1125
5z2 = 1125
Divide each side by '5'.
z2 = 225
Simplifying
z2 = 225
Take the square root of each side:
z = {-15, 15}
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