Question

Solve with using elimination
3х + 5y = 54
6х +4y = 72​

Answer 1

y = 6 x=8

Explanation:

(3х + 5y = 54)-2 times by -2

6х +4y = 72

-6х + -10y = -108 now combine the equations

6х + 4y = 72

-6y = -36 now divide

y = 6

Plug 6 in 6х +4 * 6 = 72

x=8