kingwillams19 kingwillams19
  • 06-02-2020
  • Mathematics
contestada

x + y = 3
3x + 2y = 14

Respuesta :

iwillanswer iwillanswer
  • 14-02-2020

The solution is x = 8 and y = -5

Solution:

Given system of equations are:

x + y = 3 ------ eqn 1

3x + 2y = 14 ------ eqn 2

We have to find the solution to the equations

We can use substitution method to solve

From eqn 1,

x + y = 3

Isolate for "x"

x = 3 - y ------ eqn 3

Substitute eqn 3 in eqn 2

3(3 - y) + 2y = 14

9 - 3y + 2y = 14

-y = 14 - 9

-y = 5

y = -5

Substitute y = -5 in eqn 3

x = 3 - (-5)

x = 3 + 5 = 8

x = 8

Thus the solution is x = 8 and y = -5

Answer Link

Otras preguntas

Help plzzz The most common rule for forming plural nouns is a. adding -es to the word. b. changing the y to i and adding -es. c. adding -s to the word. d. d
Darryl has a board that is 8 feet long.He cuts it into pieces that's are each 2 feet long
Why are deserts often only sparsely populated
what is 59,424.77 rounded to the nearest square mile
You often insert your company's logo into documents you create. One way to make it easier for you to quickly insert it is to save the logo as a
Why are undefined terms necessary in geometry
The number 3,333 the second 3 is in the hundreds place what is the value
Which two lines are parallel: y=3x+2, y=3x+4, y+2x+4
Use f (x) and g (x) to evaluate each expression symbolically. f (x)=4x-x^3, g (x)=x+3 (A) (g+g)(-2) (B) (f-g)(0) (C) (gf)(1) (D) (g/f)(-3)
how deep would you have to drill to reach the center of earth?