4(a-1)-21(a-5)=14(3a+6)

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Solution for 4(a-1)-21(a-5)=14(3a+6) equation:


Simplifying
4(a + -1) + -21(a + -5) = 14(3a + 6)

Reorder the terms:
4(-1 + a) + -21(a + -5) = 14(3a + 6)
(-1 * 4 + a * 4) + -21(a + -5) = 14(3a + 6)
(-4 + 4a) + -21(a + -5) = 14(3a + 6)

Reorder the terms:
-4 + 4a + -21(-5 + a) = 14(3a + 6)
-4 + 4a + (-5 * -21 + a * -21) = 14(3a + 6)
-4 + 4a + (105 + -21a) = 14(3a + 6)

Reorder the terms:
-4 + 105 + 4a + -21a = 14(3a + 6)

Combine like terms: -4 + 105 = 101
101 + 4a + -21a = 14(3a + 6)

Combine like terms: 4a + -21a = -17a
101 + -17a = 14(3a + 6)

Reorder the terms:
101 + -17a = 14(6 + 3a)
101 + -17a = (6 * 14 + 3a * 14)
101 + -17a = (84 + 42a)

Solving
101 + -17a = 84 + 42a

Solving for variable 'a'.

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

Add '-42a' to each side of the equation.
101 + -17a + -42a = 84 + 42a + -42a

Combine like terms: -17a + -42a = -59a
101 + -59a = 84 + 42a + -42a

Combine like terms: 42a + -42a = 0
101 + -59a = 84 + 0
101 + -59a = 84

Add '-101' to each side of the equation.
101 + -101 + -59a = 84 + -101

Combine like terms: 101 + -101 = 0
0 + -59a = 84 + -101
-59a = 84 + -101

Combine like terms: 84 + -101 = -17
-59a = -17

Divide each side by '-59'.
a = 0.2881355932

Simplifying
a = 0.2881355932

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