jadechen300 jadechen300
  • 01-03-2020
  • Mathematics
contestada


Solve the simultaneous equations.
3x -2y=10
2x+ 5y=13​

Respuesta :

Leora03
Leora03 Leora03
  • 01-03-2020

Answer:

x=4, y=1

Step-by-step explanation:

First label the equations.

3x -2y= 10 -----(1)

2x +5y= 13 -----(2)

From (1): 3x= 2y +10

x= 2/3y +10/3 -----(3) (÷3 on both sides)

subst. (3) into (2):

2(2/3y +10/3) +5y= 13

4/3y +20/3 +5y= 13 (expand)

19/3y= 13 -20/3 (move all y terms to 1 side)

19/3y= 19/3 (simplify)

y= 1

subst. into (3):

x= (2/3)(1) +10/3

x= 4

Answer Link
hello999999 hello999999
  • 01-03-2020
The answer is
X=4, Y=1
Answer Link

Otras preguntas

Evolution is: A) A change in the composition of a population from one generation to the next.B) A phenomenon that must be inferred from evidence, because it can
what is the prefix of enactment?
Substitution how do u do it??
Write an equation for a non-vertical line that contains the point ( 2,-4 )
how does the carbon cycle work in the desert
The decline in medieval trade was caused by
Substitution how do u do it??
What is the slope of (2,3) , (6,7)
Predict what happens when zinc is added to water
Orchids are a type of flowering plant. How would biologists explain how a living orchid species lacking leaves evolved from an ancestral orchid species that had