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Simplifying
-5t2 + 75 = 70
Reorder the terms:
75 + -5t2 = 70
Solving
75 + -5t2 = 70
Solving for variable 't'.
Move all terms containing t to the left, all other terms to the right.
Add '-75' to each side of the equation.
75 + -75 + -5t2 = 70 + -75
Combine like terms: 75 + -75 = 0
0 + -5t2 = 70 + -75
-5t2 = 70 + -75
Combine like terms: 70 + -75 = -5
-5t2 = -5
Divide each side by '-5'.
t2 = 1
Simplifying
t2 = 1
Take the square root of each side:
t = {-1, 1}
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