7(10-X)-(4-X)=48

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Solution for 7(10-X)-(4-X)=48 equation:


Simplifying
7(10 + -1X) + -1(4 + -1X) = 48
(10 * 7 + -1X * 7) + -1(4 + -1X) = 48
(70 + -7X) + -1(4 + -1X) = 48
70 + -7X + (4 * -1 + -1X * -1) = 48
70 + -7X + (-4 + 1X) = 48

Reorder the terms:
70 + -4 + -7X + 1X = 48

Combine like terms: 70 + -4 = 66
66 + -7X + 1X = 48

Combine like terms: -7X + 1X = -6X
66 + -6X = 48

Solving
66 + -6X = 48

Solving for variable 'X'.

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

Add '-66' to each side of the equation.
66 + -66 + -6X = 48 + -66

Combine like terms: 66 + -66 = 0
0 + -6X = 48 + -66
-6X = 48 + -66

Combine like terms: 48 + -66 = -18
-6X = -18

Divide each side by '-6'.
X = 3

Simplifying
X = 3

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