Answer: 24
Step-by-step explanation:
you add 12 to 39 which equals 51 then you subtract 51 from 75 which equals 24
hope this helps
X+3y=7
x-3y=1
add them together
x+3y=7
<u>x-3y=1 +
</u>2x+0y=8
2x=8
divide 2
x=4
subsitute
x+3y=7
4+3y=7
subtract 4
3y=3
divid 3
y=1
x=4
y=1
answer is A
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Cheyenne sells 7.1428% of her cards at the craft fair. I hope this helps you!
12*14=168*4=672 dollars the answer to the equation.