45-3+7x-15=42

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Solution for 45-3+7x-15=42 equation:


Simplifying
45 + -3 + 7x + -15 = 42

Reorder the terms:
45 + -3 + -15 + 7x = 42

Combine like terms: 45 + -3 = 42
42 + -15 + 7x = 42

Combine like terms: 42 + -15 = 27
27 + 7x = 42

Solving
27 + 7x = 42

Solving for variable 'x'.

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

Add '-27' to each side of the equation.
27 + -27 + 7x = 42 + -27

Combine like terms: 27 + -27 = 0
0 + 7x = 42 + -27
7x = 42 + -27

Combine like terms: 42 + -27 = 15
7x = 15

Divide each side by '7'.
x = 2.142857143

Simplifying
x = 2.142857143

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