Answer:
x -7
Step-by-step explanation:
(3x + 5) + (2x - 9) - (4x+3)
3x + 5 + 2x - 9 -4x -3
x -7
Answer:
For a single value of x function has more than one corresponding value of y which satisfies the equation.
Step-by-step explanation:
Function: A relationship between a set of inputs and a set of possible outputs, where exactly one output is associated with each input.
It means for an equation to represent a function any single value of x there should be only one corresponding value of y which satisfies the equation.
Now consider the given equation.

If we put x=0 then we get two value of y i.e
and
which satisfy the equation and therefore the equation is not a function.
A function z=f(x,y) has two partial derivatives and y. These derivatives correspond to each of the independent variables and can be interpreted as instantaneous rates of change (that is, as slopes of a tangent line). Similarly, ∂z/∂y represents the slope of the tangent line parallel to the y-axis.
Answer:
4b represents the 4 bananas he eats