Answer:
x = 5
Explanation:
Simplifying 2x + -1 + 9x + 3 = 57
Reorder the terms: -1 + 3 + 2x + 9x = 57
Combine like terms: -1 + 3 = 2 2 + 2x + 9x = 57
Combine like terms: 2x + 9x = 11x 2 + 11x = 57
Solving 2 + 11x = 57
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-2' to each side of the equation. 2 + -2 + 11x = 57 + -2
Combine like terms: 2 + -2 = 0 0 + 11x = 57 + -2 11x = 57 + -2
Combine like terms: 57 + -2 = 55 11x = 55
Divide each side by '11'. x = 5
Simplifying x = 5
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