5x-(7a-8b)-3x+5y-42=

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Solution for 5x-(7a-8b)-3x+5y-42= equation:


Simplifying
5x + -1(7a + -8b) + -3x + 5y + -42 = 0
5x + (7a * -1 + -8b * -1) + -3x + 5y + -42 = 0
5x + (-7a + 8b) + -3x + 5y + -42 = 0

Reorder the terms:
-42 + -7a + 8b + 5x + -3x + 5y = 0

Combine like terms: 5x + -3x = 2x
-42 + -7a + 8b + 2x + 5y = 0

Solving
-42 + -7a + 8b + 2x + 5y = 0

Solving for variable 'a'.

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

Add '42' to each side of the equation.
-42 + -7a + 8b + 2x + 42 + 5y = 0 + 42

Reorder the terms:
-42 + 42 + -7a + 8b + 2x + 5y = 0 + 42

Combine like terms: -42 + 42 = 0
0 + -7a + 8b + 2x + 5y = 0 + 42
-7a + 8b + 2x + 5y = 0 + 42

Combine like terms: 0 + 42 = 42
-7a + 8b + 2x + 5y = 42

Add '-8b' to each side of the equation.
-7a + 8b + 2x + -8b + 5y = 42 + -8b

Reorder the terms:
-7a + 8b + -8b + 2x + 5y = 42 + -8b

Combine like terms: 8b + -8b = 0
-7a + 0 + 2x + 5y = 42 + -8b
-7a + 2x + 5y = 42 + -8b

Add '-2x' to each side of the equation.
-7a + 2x + -2x + 5y = 42 + -8b + -2x

Combine like terms: 2x + -2x = 0
-7a + 0 + 5y = 42 + -8b + -2x
-7a + 5y = 42 + -8b + -2x

Add '-5y' to each side of the equation.
-7a + 5y + -5y = 42 + -8b + -2x + -5y

Combine like terms: 5y + -5y = 0
-7a + 0 = 42 + -8b + -2x + -5y
-7a = 42 + -8b + -2x + -5y

Divide each side by '-7'.
a = -6 + 1.142857143b + 0.2857142857x + 0.7142857143y

Simplifying
a = -6 + 1.142857143b + 0.2857142857x + 0.7142857143y

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