vanessapel15
vanessapel15 vanessapel15
  • 03-05-2020
  • Mathematics
contestada

plz help ! solve the following system of equations

5x+7y=23
9x+4y=7

Respuesta :

brucedeluxegd
brucedeluxegd brucedeluxegd
  • 03-05-2020

Answer: x = -1 y = 4  I got my answer by solving for one variable in the first equation and then substituting what I got for that variable into the second equation in place of that aforementioned variable then solving for the last variable.

Answer Link

Otras preguntas

During the 1920s, American farmers as a group did what?
Suppose you use a microscope to look at a cell from the leaf of a tree. What structure will you see that would not be found in a cell from your fingernail? A. m
Math problem solving 9-3 A new car costs$13,000and is depreciating by $900each year.how much will the car be worth after 4 years?
Jason has a piece of wire that is 62.4 inches long. He cuts the wire into 3 equal pieces. Which is the best estimate of the length of each piece of wire.
the bakers at healthy bakery can make 210 bagel in 10 hours. how many bagels can they bake in 20 hours?what was that rate per hour
what is an equivalent expression to (24a+56b)
What would be a good national slogan that people could identify with and rally behind?
what is 0.1 10 times as much
is it true 5.14 = 21/4?
There is 1/4 ounce of yeast in every 2 1/4 teaspoons of years. A recipe for bread calls for 2 teaspoons of yeast. How many ounces of yeast are needed for this r