Question

If x= 2 and y= -3, find:

3x+4y



full solution please







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Answer 1

Answer:

-6

Step-by-step explanation:

transpose the value of x and y in the equation

$3x + 4y \\ 3(2) + 4( - 3) \\ 6 - 12 \\ - 6$

Answer 2

Given: The equation is$3x+4y$ and$x= 2 \ and\ y= -3$.

We have to solve the above equation.

As we know that the value of $x\ and \ y$is given that is$x= 2 \ and\ y= -3$.

By putting this value on the equation is$3x+4y$ we are solving the above equation.

 We are solving in the following way:  

We have,

The equation is$3x+4y$ and$x= 2 \ and\ y= -3$.

Now,

$3x+4y$

$\Rightarrow 3\times2+4\times-3\\\Rightarrow 6-12\\\Rightarrow -6$

Hence, the solution of the above equation is$-6$.