exam
Maths Puzzle
Numerical Ability
solve for y: x=y-2
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3
thank you for your help this problem is not from my book its a hand out
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exam Other Question
Please help me with this addition problem:
sqrt(x^3+y^4) + xy^2sqrt(x)
what am i doing wrong?
¼ = 3 - (2x-1)/(x+2)
¼ * 4(x+2) = 3 - {(2x-1)/(x+2)} *4(x+2)
x + 2 = 3 - (2x - 1)4
x + 2 = 3 - (8x - 4)
x + 2 = 7 - 8x
x + 2 - 2 = 7 - 2 - 8x
x +8x = 7 - 8x +8x
9x = 7
9x/9 = 7/9
x = 7/9