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
8 + y
8+y is the sum of 8 and y
8 + 6y
8
5
Y = 4 (x+8)
The word sum is the clue. It means the problem will be an addition problem.y + 3(8) = ?y + 24 = ?
8y+6y is 14y
y = x +8 where x is the number
vikings
x+y=18x^2+y^2=164 x=10 and y=8 or vice versa
It is an algebraic equation.