a+3b+7c=100

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Solution for a+3b+7c=100 equation:


Simplifying
a + 3b + 7c = 100

Solving
a + 3b + 7c = 100

Solving for variable 'a'.

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

Add '-3b' to each side of the equation.
a + 3b + -3b + 7c = 100 + -3b

Combine like terms: 3b + -3b = 0
a + 0 + 7c = 100 + -3b
a + 7c = 100 + -3b

Add '-7c' to each side of the equation.
a + 7c + -7c = 100 + -3b + -7c

Combine like terms: 7c + -7c = 0
a + 0 = 100 + -3b + -7c
a = 100 + -3b + -7c

Simplifying
a = 100 + -3b + -7c

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