9-4(2(-4)-1)=45

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Solution for 9-4(2(-4)-1)=45 equation: 


Simplifying
9 + -4(2(-4) + -1) = 45

Multiply 2 * -4
9 + -4(-8 + -1) = 45

Combine like terms: -8 + -1 = -9
9 + -4(-9) = 45

Multiply -4 * -9
9 + 36 = 45

Combine like terms: 9 + 36 = 45
45 = 45

Add '-45' to each side of the equation.
45 + -45 = 45 + -45

Combine like terms: 45 + -45 = 0
0 = 45 + -45

Combine like terms: 45 + -45 = 0
0 = 0

Solving
0 = 0

Couldn't find a variable to solve for.

This equation is an identity, all real numbers are solutions.

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