Question

como se hace esta ecuacion?
x-1=81:9

Answer 1

$x-1= \frac{81}{9} \\ \\ x-1=9 \\ \\ x=9+1 \\ \\ x=10$

Answer 2

Simplifying -9(x + -1) = 81 Reorder the terms: -9(-1 + x) = 81 (-1 * -9 + x * -9) = 81 (9 + -9x) = 81 Solving 9 + -9x = 81 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + -9x = 81 + -9 Combine like terms: 9 + -9 = 0 0 + -9x = 81 + -9 -9x = 81 + -9 Combine like terms: 81 + -9 = 72 -9x = 72 Divide each side by '-9'. x = -8 Simplifying x = -8