7(X)=5[2X]-1

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Solution for 7(X)=5[2X]-1 equation: 


Simplifying
7(X) = 5[2X] + -1

Remove brackets around [2X]
7X = 5 * 2X + -1

Multiply 5 * 2
7X = 10X + -1

Reorder the terms:
7X = -1 + 10X

Solving
7X = -1 + 10X

Solving for variable 'X'.

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

Add '-10X' to each side of the equation.
7X + -10X = -1 + 10X + -10X

Combine like terms: 7X + -10X = -3X
-3X = -1 + 10X + -10X

Combine like terms: 10X + -10X = 0
-3X = -1 + 0
-3X = -1

Divide each side by '-3'.
X = 0.3333333333

Simplifying
X = 0.3333333333

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