X-7=48-7(X+9)

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Solution for X-7=48-7(X+9) equation:


Simplifying
X + -7 = 48 + -7(X + 9)

Reorder the terms:
-7 + X = 48 + -7(X + 9)

Reorder the terms:
-7 + X = 48 + -7(9 + X)
-7 + X = 48 + (9 * -7 + X * -7)
-7 + X = 48 + (-63 + -7X)

Combine like terms: 48 + -63 = -15
-7 + X = -15 + -7X

Solving
-7 + X = -15 + -7X

Solving for variable 'X'.

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

Add '7X' to each side of the equation.
-7 + X + 7X = -15 + -7X + 7X

Combine like terms: X + 7X = 8X
-7 + 8X = -15 + -7X + 7X

Combine like terms: -7X + 7X = 0
-7 + 8X = -15 + 0
-7 + 8X = -15

Add '7' to each side of the equation.
-7 + 7 + 8X = -15 + 7

Combine like terms: -7 + 7 = 0
0 + 8X = -15 + 7
8X = -15 + 7

Combine like terms: -15 + 7 = -8
8X = -8

Divide each side by '8'.
X = -1

Simplifying
X = -1

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