8 x 4 + 9 -9 + 18 answer

50

Step-by-step explanation:

8 x 4 + 9 -9 + 18

PEMDAS says multiply first

32 + 9 -9 + 18

Then add and subtract from left to right

41-9+18

32+18

50

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,