Alegbra. slove the following simultaneous equation – 2x-7y=7; 3x+y=22 Question Alegbra. slove the following simultaneous equation …. 2x-7y=7; 3x+y=22 in progress 0 Math Elliana 3 months 2021-10-15T18:02:52+00:00 2021-10-15T18:02:52+00:00 2 Answers 0 views 0

## Answers ( )

Answer:## x=7 ; y=1

Step-by-step explanation:## Step-by-step explanation:

## 2x – 7y = 7 —————–1

## 3x + y = 22 —————-2

## multiply whole eq. 2 by 7

## 21x + 7y = 154 ———— 3

## Add ep. 1. and 3.

## 2x – 7y = 7

## 21x + 7y = 154

## 23x = 161

## x = 161÷23

## x = 7

## Substituiting x = 7 in ep. 1

## 2(7) – 7y = 7

## – 7y = 7 – 14

## – 7y = – 7 ( – and – cancel )

## 7y = 7

## y = 7÷7

## y = 1

## the value of x any y is 7 and 1.

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vkhamble4

19.12.2018

Math

Secondary School

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2x – 7y = 7; 3x + y = 22

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sayyadmohd78

Sayyadmohd78Genius

Answer:

Step-by-step explanation:

2x – 7y = 7 —————–1

3x + y = 22 —————-2

multiply whole eq. 2 by 7

21x + 7y = 154 ———— 3

Add ep. 1. and 3.

2x – 7y = 7

21x + 7y = 154

23x = 161

x = 161÷23

x = 7

Substituiting x = 7 in ep. 1

2(7) – 7y = 7

– 7y = 7 – 14

– 7y = – 7 ( – and – cancel )

7y = 7

y = 7÷7

y = 1

the value of x any y is 7 and 1.

i have solve this question by simultaneous method

if you are satisfy with my answer then mark me as a brainlist.

if there is anything wrong then kindly rectify me