Algebraically it is written as 'y + 8'
In algebra
Addition is a + b
Subtraction is a - b
Multiplication is ab ( Note NO 'X' symbol)
Division is a/b ( like a fraction).
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x+y=18x^2+y^2=164 x=10 and y=8 or vice versa
Twice the sum of 'x' and 'y' . . . 2(x+y) The sum of twice 'x' and 'y' . . . (2x+y)
x+y=12 x-y =4 x=12-4 =8 8+y=12 y=12-8 =4 so x=8 y=4 8+4=12 8-4=4
8 , and 7. x+y=15 >> x=-y+15 x*y=56 >> y*(-y+15)=56 , then solve for y , put y back into either equation for x.
Write the following as an algebraic expression using x as the variable: The sum of a number and -8