Solve the system of equations.
5x – 4y = -10
y = 2x – 5
X=
Y=

Step-by-step explanation:

x,y} = {-7/25,2/5}  that os the enter

x=-10/3 and one third y=-35/3

Step-by-step explanation:

substitute 2x-5 in for y so

5x-4(2x-5)=-10 then solve

distrubute the -4

5x-8x+20=-10

add like terms

-3x+20=-10

isolate the variable, so subtract 20 from both sides

-3x=10

divide both sides by -3

x=-10/3

the plug x back into second equation

y=2(-10/3)-5

then solve

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so: