Answer:
Dont no but will check
planation:
a = -2
b = 7
Step-by-step explanation:
5a+3b=11
-2a+3=b
substitute for b:
5a + 3(-2a + 3) = 11
5a -6a + 9 = 11
-a = 2
1. 4 * 7 * 11 = 308
2. 7 * 7 * 4/2 = 98
3. 98 + 308 = 406
Hope this helps!