3(c+(-7))+(-9)=-45

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Solution for 3(c+(-7))+(-9)=-45 equation:


Simplifying
3(c + (-7)) + (-9) = -45
3(c + -7) + (-9) = -45

Reorder the terms:
3(-7 + c) + (-9) = -45
(-7 * 3 + c * 3) + (-9) = -45
(-21 + 3c) + (-9) = -45
-21 + 3c + -9 = -45

Reorder the terms:
-21 + -9 + 3c = -45

Combine like terms: -21 + -9 = -30
-30 + 3c = -45

Solving
-30 + 3c = -45

Solving for variable 'c'.

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

Add '30' to each side of the equation.
-30 + 30 + 3c = -45 + 30

Combine like terms: -30 + 30 = 0
0 + 3c = -45 + 30
3c = -45 + 30

Combine like terms: -45 + 30 = -15
3c = -15

Divide each side by '3'.
c = -5

Simplifying
c = -5

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