Skata Skata
  • 04-02-2021
  • Mathematics
contestada

elimination process

7a-3b = 26
a + 2b =11

Respuesta :

rashmikushwahask
rashmikushwahask rashmikushwahask
  • 04-02-2021

Answer:(a=5,b=3)

7a-3b = 26--------(1)

a + 2b =11---------(2)

on mutlplying by7 in eq 2

= 7a+14b=77-------(3)

from eq(1) and (3) (on substracting)

7a+14b=77

7a-3b=26

________

=-17b=51

b=51/17

b=3

on putting value of b in eq 1

7a-3b = 26

=7a-9=26

7a=35

a=5

Step-by-step explanation:

hope it helps

mark me brainliest

Answer Link

Otras preguntas

Explain how they would make solutions of the sulfuric acid at five different concentrations​
Using a rounded version of a conversion ratio allows for a quick estimate of a unit conversion using mental math or paper and pencil (no calculator or phone). S
Pls help with that blue marked question! ASAP pls guys after a few hours I have exam so pls
if the figure forms the base of a right solid 110 centimeters high, find the surface area​
a. From binary to decimal; 100112 b. From decimal to octal; 57110 c. From decimal to hexadecimal; 22210 a . From binary to decimal ; 100112 b . From decimal to
find the measure of angle ACB​
how both e-learning and classroom learning are one of the quickest learning strategies?​
I need help!!!!True OR False------------------------m - 63 = 37, m = 100?​
What kind of metabolic pathway is this and why?
How many 1/4 minutes are there in 3/4 minutes?