SOLUTION: Find the value of y for the given value of x using two methods. First, substitute the value of x into the equation and then solve for y. second, solve for y and then substitute the

Algebra ->  Expressions-with-variables -> SOLUTION: Find the value of y for the given value of x using two methods. First, substitute the value of x into the equation and then solve for y. second, solve for y and then substitute the      Log On


   

Question 332623: Find the value of y for the given value of x using two methods. First, substitute the value of x into the equation and then solve for y. second, solve for y and then substitute the value of x into the equation.
4x+9y=30; x:3
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!






Do the arithmetic.

Add to both sides, then multiply by

Then insert 3 in place of and do the arithmetic again. If you don't get the same answer both times, check your arithmetic.

John

My calculator said it, I believe it, that settles it