Y=-3x+1
So the answer is A. All you're doing is moving the 3x to the opposite side, and because your switching the side, you need to switch the sign. So it's a negative 3x after you solve for y. Solving for y(or any letter) is just getting that letter alone on one side of the equal sign.
5z>15-----subtract 2 on both sides
z>3----divide by 5
therefore, z must equal -10, or -4
ABC is reflected over y-axis and translated up 1 unit
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