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

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


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

Combine like terms: 4 + -1 = 3
7(3) = 3(1a + -4)

Multiply 7 * 3
21 = 3(1a + -4)

Reorder the terms:
21 = 3(-4 + 1a)
21 = (-4 * 3 + 1a * 3)
21 = (-12 + 3a)

Solving
21 = -12 + 3a

Solving for variable 'a'.

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

Add '-3a' to each side of the equation.
21 + -3a = -12 + 3a + -3a

Combine like terms: 3a + -3a = 0
21 + -3a = -12 + 0
21 + -3a = -12

Add '-21' to each side of the equation.
21 + -21 + -3a = -12 + -21

Combine like terms: 21 + -21 = 0
0 + -3a = -12 + -21
-3a = -12 + -21

Combine like terms: -12 + -21 = -33
-3a = -33

Divide each side by '-3'.
a = 11

Simplifying
a = 11

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