First you can divide 44 into 15, which is two with a remainder of 14 so that means the mixed number would be 2 and 14/15
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(-2,-5)
The first goal with equations like these is to get one of the variables to go away. You can do that by adding/subtracting one equation from the other. Then you solve for the one variable. Then you plug that answer into one of the original equations and solve.
Answer:
c?
Step-by-step explanation:
Step-by-step explanation:

3(x2+2x-3)-4(4x2-7x+5)
3x2 + 6x - 9 - 16x2 + 28x - 20
-13x2 + 34x - 29