exam Maths Puzzle Numerical Ability

Help, please! Solve for y:
x^2-xy+y^2=6
Thanks!!

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exam Other Question

can you help me solve and check this problem using substitution method: (((x=1/5y 3x+2y=26))) Write each of the following expressions in the form a +bi

a. (6+i)(3-2i)
b. i^19-i^2
c. 1/2+i