2(2b+c-4a)-7(a-7c+9b)=

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Solution for 2(2b+c-4a)-7(a-7c+9b)= equation:


Simplifying
2(2b + c + -4a) + -7(a + -7c + 9b) = 0

Reorder the terms:
2(-4a + 2b + c) + -7(a + -7c + 9b) = 0
(-4a * 2 + 2b * 2 + c * 2) + -7(a + -7c + 9b) = 0
(-8a + 4b + 2c) + -7(a + -7c + 9b) = 0

Reorder the terms:
-8a + 4b + 2c + -7(a + 9b + -7c) = 0
-8a + 4b + 2c + (a * -7 + 9b * -7 + -7c * -7) = 0
-8a + 4b + 2c + (-7a + -63b + 49c) = 0

Reorder the terms:
-8a + -7a + 4b + -63b + 2c + 49c = 0

Combine like terms: -8a + -7a = -15a
-15a + 4b + -63b + 2c + 49c = 0

Combine like terms: 4b + -63b = -59b
-15a + -59b + 2c + 49c = 0

Combine like terms: 2c + 49c = 51c
-15a + -59b + 51c = 0

Solving
-15a + -59b + 51c = 0

Solving for variable 'a'.

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

Add '59b' to each side of the equation.
-15a + -59b + 59b + 51c = 0 + 59b

Combine like terms: -59b + 59b = 0
-15a + 0 + 51c = 0 + 59b
-15a + 51c = 0 + 59b
Remove the zero:
-15a + 51c = 59b

Add '-51c' to each side of the equation.
-15a + 51c + -51c = 59b + -51c

Combine like terms: 51c + -51c = 0
-15a + 0 = 59b + -51c
-15a = 59b + -51c

Divide each side by '-15'.
a = -3.933333333b + 3.4c

Simplifying
a = -3.933333333b + 3.4c

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