Question

If the equation is 5x+4y and x is 6 what is y

Answer 1

The value of y is -7.5

Explanation:

Given:

equation = 5x+4y

x = 6

To Find:

The value of y

Solution:

We can find the value of y by substitution method.The substitution method is a way of solving a system of equations by expressing the equations in terms of only one variable.

The substitution method for solving systems of equations is a way to simplify the system of equations by expressing one variable in terms of another, thus removing one variable from an equation.

Now

5x + 4y

5x = -4y

`y  = -(5x)/(4)`-----------------------(1)

on substituting the y value in the equation (1),

`y  = -(5* 6)/(4)`

y = -7.5