How would you choose to reduce the system shown to a 2 × 2? Explain why you would choose this approach. –3x + y – 2z = 10 (1)
5x – 2y – 2z = 12 (2)
x – y + z = 23 (3)

19.

step-by-step explanation:

you add the 9 in the tens column since it is a single digit and 9 plus zero is 9 so it is 19

1/3 + 1/3 ≠ 2/6 because 1/3 alone = 2/6  

step by step explanation:

1/3 + 1/3 = 2/3       2/3=4/6

80x^8−68x^6+16^5−20x^4−4x^3+8x^2

hope i'm right lol

the photograph is photographer and- in the process- ourselves.

step-by-step explanation: