Question

{7x-9y=1
{X-2y=0 não consigo entender

Answer 1

7x + 9y = 1 Solving 7x + 9y = 1 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-9y' to each side of the equation. 7x + 9y + -9y = 1 + -9y Combine like terms: 9y + -9y = 0 7x + 0 = 1 + -9y 7x = 1 + -9y Divide each side by '7'. x = 0.1428571429 + -1.285714286y Simplifying x = 0.1428571429 + -1.285714286y