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Simplifying 7x + 11y + 90z + 77 = 9007 Reorder the terms: 77 + 7x + 11y + 90z = 9007 Solving 77 + 7x + 11y + 90z = 9007 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-77' to each side of the equation. 77 + 7x + 11y + -77 + 90z = 9007 + -77 Reorder the terms: 77 + -77 + 7x + 11y + 90z = 9007 + -77 Combine like terms: 77 + -77 = 0 0 + 7x + 11y + 90z = 9007 + -77 7x + 11y + 90z = 9007 + -77 Combine like terms: 9007 + -77 = 8930 7x + 11y + 90z = 8930 Add '-11y' to each side of the equation. 7x + 11y + -11y + 90z = 8930 + -11y Combine like terms: 11y + -11y = 0 7x + 0 + 90z = 8930 + -11y 7x + 90z = 8930 + -11y Add '-90z' to each side of the equation. 7x + 90z + -90z = 8930 + -11y + -90z Combine like terms: 90z + -90z = 0 7x + 0 = 8930 + -11y + -90z 7x = 8930 + -11y + -90z Divide each side by '7'. x = 1275.714286 + -1.571428571y + -12.85714286z Simplifying x = 1275.714286 + -1.571428571y + -12.85714286z
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