SOLUTION: how do you solve for 4x+3y=180 my teacher gave us the hint that x= 15 and that y=40 but i cant figure out the steps

SOLUTION: how do you solve for 4x+3y=180 my teacher gave us the hint that x= 15 and that y=40 but i cant figure out the steps

Algebra.Com

Question 491118: how do you solve for 4x+3y=180 my teacher gave us the hint that x= 15 and that y=40 but i cant figure out the steps
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Your teacher already solved it, but this
is a case of 1 equation and 2 unknowns,
so it isn't solvable except by trial and error.
( as far as I know )
RELATED QUESTIONS
How do I solve the equation 4^2X=64? The teacher gave us the answer, 3/2, but I don't... (answered by mananth,Alan3354,MathLover1)

hi, i'm having trouble with one specific problem which you use "substitution" in order to (answered by stanbon)

How do you make a table of values and graph y<-x^2+x? Everytime i graph it i get a graph... (answered by richwmiller)

I am taking integrated algebra online, and my teacher gave us two standard equations for... (answered by solver91311,lwsshak3)

my teacher gave me the expression .5(2x-14)=6x+28. i got the answer of x=-7...is that... (answered by rothauserc,ewatrrr)

This problem is from a hand out we were given in class on friday. I have spent all... (answered by jim_thompson5910)

Solve the equation 2^x-1 = 8. Give solution in fractional form. Can you show me how (answered by Alan3354)

How would this problem be completed? The three angles in a triangle measure 8b, b+20, (answered by josgarithmetic,MathTherapy)

my homework question is Write a polynomial f(x) that satisfies the given... (answered by solver91311)