7a+2(a-7)-3(b-7)=

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Solution for 7a+2(a-7)-3(b-7)= equation:


Simplifying
7a + 2(a + -7) + -3(b + -7) = 0

Reorder the terms:
7a + 2(-7 + a) + -3(b + -7) = 0
7a + (-7 * 2 + a * 2) + -3(b + -7) = 0
7a + (-14 + 2a) + -3(b + -7) = 0

Reorder the terms:
7a + -14 + 2a + -3(-7 + b) = 0
7a + -14 + 2a + (-7 * -3 + b * -3) = 0
7a + -14 + 2a + (21 + -3b) = 0

Reorder the terms:
-14 + 21 + 7a + 2a + -3b = 0

Combine like terms: -14 + 21 = 7
7 + 7a + 2a + -3b = 0

Combine like terms: 7a + 2a = 9a
7 + 9a + -3b = 0

Solving
7 + 9a + -3b = 0

Solving for variable 'a'.

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

Add '-7' to each side of the equation.
7 + 9a + -7 + -3b = 0 + -7

Reorder the terms:
7 + -7 + 9a + -3b = 0 + -7

Combine like terms: 7 + -7 = 0
0 + 9a + -3b = 0 + -7
9a + -3b = 0 + -7

Combine like terms: 0 + -7 = -7
9a + -3b = -7

Add '3b' to each side of the equation.
9a + -3b + 3b = -7 + 3b

Combine like terms: -3b + 3b = 0
9a + 0 = -7 + 3b
9a = -7 + 3b

Divide each side by '9'.
a = -0.7777777778 + 0.3333333333b

Simplifying
a = -0.7777777778 + 0.3333333333b

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