anthonymaryoyinkanso anthonymaryoyinkanso
  • 02-07-2020
  • Mathematics
contestada

Solve the pair of simultaneous equation 4x+6y=21 and 7x-3y=3

Respuesta :

isabellaconrado28 isabellaconrado28
  • 02-07-2020

Answer:

Step-by-step explanation:

Answer Link
barakaodoyo5
barakaodoyo5 barakaodoyo5
  • 02-07-2020

Answer:

X=1.5,y=2.5

Step-by-step explanation:

By elimination method

U have to make either x or y values equal and then eliminate it

The y values have a common value 12

By multiplying 6×2 and 3×4

2(4x+6y)=(21)2

4(7x-3y)=(3)4

8x+12y=42

+

28x-12y=12

36x=54

X=54/36=1.5

Substitute x with 1.5

Y=2.5

Answer Link

Otras preguntas

please help me with 20 points! and its easy
What has alternating electric and magnetic fields that travel in the form of a wave? A. electromagnet B. electromagnetic radiation C. alternating current D.
Choose the correct simplification and demonstration of the closure property given: (4x3 + 3x2 − 6x) − (10x3 + 3x2). −6x3 − 6x; is a polynomial −6x3 − 6x; may
Jana and Haiya are each filling a witch?s hat in the shape of a cone with candy. Each hat has a radius of 3.4 inches and height of 12.5 inches. How many cubic i
if f(x)=4^6+12 and g(x) = 5x-1, find (f+g)(x)
What is bigger 6 miles or 600 yards
Did I do wrong or you Just said wrong?
Selma spent 9/10 of her allowance on a new backpack. What percent of her allowance did she spend? Selma spent % of her allowance on a new backpack.
There are 20 different amino acids. What part of an amino acid changes to make each of the 20 amino acids different?
How can you describe life in Jerusalem prior to 935? Why was this?