snorriedorrie212 snorriedorrie212
  • 15-03-2019
  • Mathematics
contestada

Help soon as possible

Help soon as possible class=

Respuesta :

jimrgrant1 jimrgrant1
  • 15-03-2019

Answer:

(3, - 1)

Step-by-step explanation:

Given the 2 equations

2x - 3y = 9 → (1)

3x + 5y = 4 → (2)

Multiplying (1) by 5 and (2) by 3 will eliminate the term in y

10x - 15y = 45 → (3)

9x + 15y = 12 → (4)

Add (3) and (4) term by term

(10x + 9x) + (- 15y + 15y) = (45 + 12)

19x = 57 ( divide both sides by 19 )

x = 3

Substitute x = 3 into (1) or (2) to find corresponding value of y

(2) → 9 + 5y = 4 ( subtract 9 from both sides )

5y = - 5 ( divide both sides by 5 )

y = - 1

Solution is (3, - 1)

Answer Link

Otras preguntas

-20=-4x-6x How Do I Solve This Equation ?
5,400 inches to miles
Earth is the third planet from the sun. Which two planets are closer to the sun than Earth is?
3 3\8 lb ___ 54 oz.Complete the inequality statement.
A function is given by a table of values,a graph, a formula, or a verbal description. Determine whether it is one to one.
find the value of each expression 3[ (20 - 4) / 2] 5(9) / (8 / 4)
Traditional nineteenth-century education is usually associated with the image of a stern teacher standing in front of a blackboard in a one-room schoolhouse, te
write all of the three digit numbers that have a 3 in a tens place and 5 in the ones place
what is the word for member of one kind of organism in an ecosystem
Name three fractions whose decimal equivalent is 0.40.draw a picture if it helps you explains