hogrefekelsey hogrefekelsey

04-04-2021
Mathematics

contestada

a first number plus twice a second number is 8 twice the first number plus the second totals 25

Respuesta :

barackodam barackodam

04-04-2021

Answer:

The first number is 14

The second number is -3

Step-by-step explanation:

x + 2y = 8

2x + y = 25

Solving simultaneously,

2x + 4y = 16

2x + y = 25

On subtracting, we have

3y = -9

y = -3

Going to substitute for y, we have

x + 2(-3) = 8

x - 6 = 8

x = 14

Answer Link

Otras preguntas

How are proteins and nucleic acids related? A.) They both provide energy. B.) They both carry genetic information. C.) The structure of proteins is determined b

Solve For V 2v + 18 = 16 - 4 ( v + 7 )

what types of technologies make up a comprehensive system

According to Newton's third law of motion, if you push against a wall, the wall will __________. a. attract you with its low gravity b. fall over once you overc

is a aluminum pie plate an element

Solve for y: -y+6+6y=9

What was the importance of grain storage

what twice daily event would cause water levels around jamestown to rise and cause wells and fresh water streams to become brackish

how did the French and Indian war draw the colonist closer together but increase friction with Britain

how did the flooding of the nile affect Egyptian society