3(7x-5)-4(3x-10)=8x+4

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Solution for 3(7x-5)-4(3x-10)=8x+4 equation:


Simplifying
3(7x + -5) + -4(3x + -10) = 8x + 4

Reorder the terms:
3(-5 + 7x) + -4(3x + -10) = 8x + 4
(-5 * 3 + 7x * 3) + -4(3x + -10) = 8x + 4
(-15 + 21x) + -4(3x + -10) = 8x + 4

Reorder the terms:
-15 + 21x + -4(-10 + 3x) = 8x + 4
-15 + 21x + (-10 * -4 + 3x * -4) = 8x + 4
-15 + 21x + (40 + -12x) = 8x + 4

Reorder the terms:
-15 + 40 + 21x + -12x = 8x + 4

Combine like terms: -15 + 40 = 25
25 + 21x + -12x = 8x + 4

Combine like terms: 21x + -12x = 9x
25 + 9x = 8x + 4

Reorder the terms:
25 + 9x = 4 + 8x

Solving
25 + 9x = 4 + 8x

Solving for variable 'x'.

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

Add '-8x' to each side of the equation.
25 + 9x + -8x = 4 + 8x + -8x

Combine like terms: 9x + -8x = 1x
25 + 1x = 4 + 8x + -8x

Combine like terms: 8x + -8x = 0
25 + 1x = 4 + 0
25 + 1x = 4

Add '-25' to each side of the equation.
25 + -25 + 1x = 4 + -25

Combine like terms: 25 + -25 = 0
0 + 1x = 4 + -25
1x = 4 + -25

Combine like terms: 4 + -25 = -21
1x = -21

Divide each side by '1'.
x = -21

Simplifying
x = -21

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