Equations are expressions with equal values
The equation that links x and y is [tex]7x = 9y[/tex]
How to determine the equation
The ratio is given as:
[tex]x : y = 9 : 7[/tex]
Express the ratio, as a fraction
[tex]\frac xy = \frac 97[/tex]
Cross multiply
[tex]7 *x = 9 * y[/tex]
Evaluate the product
[tex]7x = 9y[/tex]
Hence, the equation that links x and y is [tex]7x = 9y[/tex]
Read more about equations at:
https://brainly.com/question/7784687
