3(3a-3)-4(5a+2)=7a+1

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Solution for 3(3a-3)-4(5a+2)=7a+1 equation:


Simplifying
3(3a + -3) + -4(5a + 2) = 7a + 1

Reorder the terms:
3(-3 + 3a) + -4(5a + 2) = 7a + 1
(-3 * 3 + 3a * 3) + -4(5a + 2) = 7a + 1
(-9 + 9a) + -4(5a + 2) = 7a + 1

Reorder the terms:
-9 + 9a + -4(2 + 5a) = 7a + 1
-9 + 9a + (2 * -4 + 5a * -4) = 7a + 1
-9 + 9a + (-8 + -20a) = 7a + 1

Reorder the terms:
-9 + -8 + 9a + -20a = 7a + 1

Combine like terms: -9 + -8 = -17
-17 + 9a + -20a = 7a + 1

Combine like terms: 9a + -20a = -11a
-17 + -11a = 7a + 1

Reorder the terms:
-17 + -11a = 1 + 7a

Solving
-17 + -11a = 1 + 7a

Solving for variable 'a'.

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

Add '-7a' to each side of the equation.
-17 + -11a + -7a = 1 + 7a + -7a

Combine like terms: -11a + -7a = -18a
-17 + -18a = 1 + 7a + -7a

Combine like terms: 7a + -7a = 0
-17 + -18a = 1 + 0
-17 + -18a = 1

Add '17' to each side of the equation.
-17 + 17 + -18a = 1 + 17

Combine like terms: -17 + 17 = 0
0 + -18a = 1 + 17
-18a = 1 + 17

Combine like terms: 1 + 17 = 18
-18a = 18

Divide each side by '-18'.
a = -1

Simplifying
a = -1

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