which of the following are possible ways to eliminate a variable by multiplying first for -x + 2y =9 and 9x - 7y = -4

the answer is 8

step-by-step explanation:

3.14 x 8x8

you have to wait a while to reward brainliest if only one person answers. if 2 people answer there should be a "mark brainliest" on their question.

i cant fully remember all of the ranks, here are the ones i remember.

hand, ambitous, ace, genius.

n=1.75+1.75

step-by-step explanation:

3.5/2=1.75

since no one answered yet i will give it a shot, not completely sure tho.

i think it should be y=cos(x+2pi), (third answer, answer c)

good luck.