-260=-7(-5a+7)-1

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Solution for -260=-7(-5a+7)-1 equation:


Simplifying
-260 = -7(-5a + 7) + -1

Reorder the terms:
-260 = -7(7 + -5a) + -1
-260 = (7 * -7 + -5a * -7) + -1
-260 = (-49 + 35a) + -1

Reorder the terms:
-260 = -49 + -1 + 35a

Combine like terms: -49 + -1 = -50
-260 = -50 + 35a

Solving
-260 = -50 + 35a

Solving for variable 'a'.

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

Add '-35a' to each side of the equation.
-260 + -35a = -50 + 35a + -35a

Combine like terms: 35a + -35a = 0
-260 + -35a = -50 + 0
-260 + -35a = -50

Add '260' to each side of the equation.
-260 + 260 + -35a = -50 + 260

Combine like terms: -260 + 260 = 0
0 + -35a = -50 + 260
-35a = -50 + 260

Combine like terms: -50 + 260 = 210
-35a = 210

Divide each side by '-35'.
a = -6

Simplifying
a = -6

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