7(4a-3)-(2a+1)-9=2(a-9)

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Solution for 7(4a-3)-(2a+1)-9=2(a-9) equation:


Simplifying
7(4a + -3) + -1(2a + 1) + -9 = 2(a + -9)

Reorder the terms:
7(-3 + 4a) + -1(2a + 1) + -9 = 2(a + -9)
(-3 * 7 + 4a * 7) + -1(2a + 1) + -9 = 2(a + -9)
(-21 + 28a) + -1(2a + 1) + -9 = 2(a + -9)

Reorder the terms:
-21 + 28a + -1(1 + 2a) + -9 = 2(a + -9)
-21 + 28a + (1 * -1 + 2a * -1) + -9 = 2(a + -9)
-21 + 28a + (-1 + -2a) + -9 = 2(a + -9)

Reorder the terms:
-21 + -1 + -9 + 28a + -2a = 2(a + -9)

Combine like terms: -21 + -1 = -22
-22 + -9 + 28a + -2a = 2(a + -9)

Combine like terms: -22 + -9 = -31
-31 + 28a + -2a = 2(a + -9)

Combine like terms: 28a + -2a = 26a
-31 + 26a = 2(a + -9)

Reorder the terms:
-31 + 26a = 2(-9 + a)
-31 + 26a = (-9 * 2 + a * 2)
-31 + 26a = (-18 + 2a)

Solving
-31 + 26a = -18 + 2a

Solving for variable 'a'.

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

Add '-2a' to each side of the equation.
-31 + 26a + -2a = -18 + 2a + -2a

Combine like terms: 26a + -2a = 24a
-31 + 24a = -18 + 2a + -2a

Combine like terms: 2a + -2a = 0
-31 + 24a = -18 + 0
-31 + 24a = -18

Add '31' to each side of the equation.
-31 + 31 + 24a = -18 + 31

Combine like terms: -31 + 31 = 0
0 + 24a = -18 + 31
24a = -18 + 31

Combine like terms: -18 + 31 = 13
24a = 13

Divide each side by '24'.
a = 0.5416666667

Simplifying
a = 0.5416666667

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