5(a-4)+2(a+30)=a+7

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Solution for 5(a-4)+2(a+30)=a+7 equation:


Simplifying
5(a + -4) + 2(a + 30) = a + 7

Reorder the terms:
5(-4 + a) + 2(a + 30) = a + 7
(-4 * 5 + a * 5) + 2(a + 30) = a + 7
(-20 + 5a) + 2(a + 30) = a + 7

Reorder the terms:
-20 + 5a + 2(30 + a) = a + 7
-20 + 5a + (30 * 2 + a * 2) = a + 7
-20 + 5a + (60 + 2a) = a + 7

Reorder the terms:
-20 + 60 + 5a + 2a = a + 7

Combine like terms: -20 + 60 = 40
40 + 5a + 2a = a + 7

Combine like terms: 5a + 2a = 7a
40 + 7a = a + 7

Reorder the terms:
40 + 7a = 7 + a

Solving
40 + 7a = 7 + a

Solving for variable 'a'.

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

Add '-1a' to each side of the equation.
40 + 7a + -1a = 7 + a + -1a

Combine like terms: 7a + -1a = 6a
40 + 6a = 7 + a + -1a

Combine like terms: a + -1a = 0
40 + 6a = 7 + 0
40 + 6a = 7

Add '-40' to each side of the equation.
40 + -40 + 6a = 7 + -40

Combine like terms: 40 + -40 = 0
0 + 6a = 7 + -40
6a = 7 + -40

Combine like terms: 7 + -40 = -33
6a = -33

Divide each side by '6'.
a = -5.5

Simplifying
a = -5.5

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