5926008032 5926008032
  • 23-05-2021
  • Mathematics
contestada

Solve by Substitution

Solve by Substitution class=

Respuesta :

sreedevi102
sreedevi102 sreedevi102
  • 23-05-2021

Answer:

[tex]-9x-10y=12 \ -----(1)\\\\-3x+3=y \ ------(2)\\\\substitute \ y \ in \ (1)\\\\-9x -10(-3x+3) =12\\\\-9x+30x-30=12\\\\21x= 12+30\\21x=42\\x=2\\\\\\substitute \ x \ in \ (2)\\-3\cdot 2+3=y\\-6+3=y\\y=-3[/tex]

x= 2, y = -3

Answer Link
8555cashio
8555cashio 8555cashio
  • 23-05-2021
x= 2 and y= -3
Just substitute the value of y into the first equation add like terms and solve
Answer Link

Otras preguntas

although the meiji constitution gave most authority to the executive branch, in practice most of the power resided with who?
if f(x)=3^x+10x and g(x)=5x-3, find (f+g)(x) what would the answer be?
100 + 200+ 300+ 400 +100000=
What is the mode of this data set? 84,92,68,79,94,84,92,79,84,68
The edge length of a cube is 17 cm. Identify the length of its diagonal. Round to the nearest tenth, if necessary. HELP PLEASE!!
what are two main ways to reduce energy use ?
For the parallelogram find the value of the variables show your work.
HELP PLEASEE! How does the currently accepted model of the nucleus provide evidence of the existence of the strong nuclear force?
What is the factorization of 49b^2-81
Camille put three and four-hundredths gallons of gasoline in her car. What decimal number represents the number of gallons she bought