exam Maths Puzzle Numerical Ability

solve each of the follwing systems by substitution.
5x-2y=-5
y-5x=3

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exam Other Question

how do you solve the linear system 6x+6y=-2 y=-x I need help on long division by binomials
This question is in the Summary section of Chapter 5 and should be done the long way.

(x^2 + 9x -1) divided by (x + 5)
Thanks!!!