3(10-3)=-4x+40

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Solution for 3(10-3)=-4x+40 equation:


Simplifying
3(10 + -3) = -4x + 40

Combine like terms: 10 + -3 = 7
3(7) = -4x + 40

Multiply 3 * 7
21 = -4x + 40

Reorder the terms:
21 = 40 + -4x

Solving
21 = 40 + -4x

Solving for variable 'x'.

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

Add '4x' to each side of the equation.
21 + 4x = 40 + -4x + 4x

Combine like terms: -4x + 4x = 0
21 + 4x = 40 + 0
21 + 4x = 40

Add '-21' to each side of the equation.
21 + -21 + 4x = 40 + -21

Combine like terms: 21 + -21 = 0
0 + 4x = 40 + -21
4x = 40 + -21

Combine like terms: 40 + -21 = 19
4x = 19

Divide each side by '4'.
x = 4.75

Simplifying
x = 4.75

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