Question

What is the value of x in the equation 3x – 4y = 65, when y = 4?
the answer is x=27

Answer 1

What is the value of x in the equation 3x-4y=65 when y=4?

Simple...plug n chug..

3x-4(4)=65

3x-16=65

Now, isolate the variable, x....

3x-16=65
+16 +16

3x=81

Now, divide,


`(3x)/(3) = (81)/(3)`

x=27.

Thus, your answer.