Given that the value of the algebraic formula 2Y square-3y + 4 is 10, then the algebraic formula y square-3 / 2 y + 2 is 10

Given that the value of the algebraic formula 2Y square-3y + 4 is 10, then the algebraic formula y square-3 / 2 y + 2 is 10

Because 2Y ^ 2-3y + 4 = 10, two sides of the equation are divided by two at the same time
Y ^ 2-3 / 2Y + 2 = 5 transposes y ^ 2-3 / 2Y = 3 and substitutes the whole into the algebraic formula y-2-3 / 2 y + 2 to get 5

Solve the equations {3x + y = 2A + B, x-3y = 2b-a} - where x and y are unknowns
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x=(a+b)/2
y=(a-b)/2

When x = 1 / 2, y = 1 / 3, find the algebraic formula: X - (X-Y) + (x + 2Y) - (x + 3Y) + -On the value of (x + 101y)~
Sorry, well, the first bracket is a plus sign.
So the title is: X - (x + y) + (x + 2Y) - (x + 3Y) + -(X+101Y)

The brackets expand to
x-x-y=-y
x+2y-x-3y=-y
x+4y-x-5y=-y
.
x+100y-x-101y=-y
So - 51y = - 51 / 3 = - 17