X+2y = 5
3х +6y = 15
use the substitution method

d

step-by-step explanation:

in a an geometric explicit equation, the first number is the starting rate. in this case 10.

1. d.90

2. e. none of these (80)

3. a. 0

4. b. 6

5. e. none of these (10)

6. a. 5