exam Maths Puzzle Numerical Ability

can some one please help me AND THANKS IN ADVANCE .
Whenever a formula is used, begin by typing the formula you intend to use. Make sure to subscript where appropriate. Pay atte

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exam Other Question

-4y+10=-2(3y+1) this is where I get lost on what to do
-4y+10=-2*3y+1 i dont know how to make the zero with a line in the middle so i hope you can understand this question:
find the reference angles 0 for the angles given below. Find the quadrants i