Answer:
-6
Step-by-step explanation:
Ok i tried and ig youre looking for what a and b equal for both systems..... it'll be 1) a=-2b+15 b=7.5-(1/2)a <-- fraction........2) a=-6+b b=6-a
6 + y × 9 (the x is a times sign btw)
No this cannot be written into a fraction there for it is a non- rational number. hope i helped :))
