ambmundle ambmundle

01-03-2017
Mathematics

contestada

how to use substitution for 4x+3y=13 and x+y=4

Respuesta :

wolf1728 wolf1728

04-03-2017

A) 4x + 3y = 13
B) x + y = 4
B) x = 4 -y Then we substitute this into Equation A

A) 4 (4-y) + 3y = 13
A) 16 -4y +3y = 13
A) -y = -3
y = 3
x = 1

Answer Link

Otras preguntas

I know this is like the 700th question I've asked

Please help! Will give brainliest, thanks and more points. Look at the picture.

Can someone explain this and help me with the answer?

what is the value of x

During the 1920s farm crops were overproduced. How did this affect farmers?

Jonathan replaced the original factory tires (P220/65 R 18) on his pickup truck with (P255/60 R 17) tires. Calculate the circumference of Jonathan’s ORIGINAL t

what is m/2=12? plz helps

France was willing to add so much more territory to the Louisiana Purchase due to complications in their conquered territory due to a { } { } in wh

How many solutions does the equation 8x-4=10 have ? PLEASE HELP QUICK

Lilly is doing a science experiment with a substance in a sealed jar. At first the substances molecules are moving around each other. What will happen to Lily s