Question

plz answer this question ​

Answer 1

Answer:

a= -6 and b=15

Step-by-step explanation:

pls refer tothe attachment of pic for the answer ok

LAST STEP IS NOT SHOWN SO I WILL WRITE IT DOWN

put a in 1

=> -6+b=9

=>  b=9+6

=> b=15

PLS MRK AS BRAINLIEST PLSSSSS.......  :)