3x-7(9-x)=4

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Solution for 3x-7(9-x)=4 equation:


Simplifying
3x + -7(9 + -1x) = 4
3x + (9 * -7 + -1x * -7) = 4
3x + (-63 + 7x) = 4

Reorder the terms:
-63 + 3x + 7x = 4

Combine like terms: 3x + 7x = 10x
-63 + 10x = 4

Solving
-63 + 10x = 4

Solving for variable 'x'.

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

Add '63' to each side of the equation.
-63 + 63 + 10x = 4 + 63

Combine like terms: -63 + 63 = 0
0 + 10x = 4 + 63
10x = 4 + 63

Combine like terms: 4 + 63 = 67
10x = 67

Divide each side by '10'.
x = 6.7

Simplifying
x = 6.7

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