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19 votes
19 votes
2x+7y+7x=18
Find the value of Y​

User Nikhil Biju
by
3.2k points

2 Answers

12 votes
12 votes

Answer:

y=−9/7x+18/7

Explanation:

2x+7y+7x=18

9x+7y=18

Step 1: Add -9x to both sides.

9x+7y+−9x=18+−9x

7y=−9x+18

Step 2: Divide both sides by 7.

7y/7=−9x+18/7

y=−9/7x+18/7

User Edoardo
by
3.6k points
13 votes
13 votes

Given :

  • 2x + 7y + 7x = 18

To Find :

  • The value of y

Solution :


\qquad { \dashrightarrow \: { \sf{2x + 7y + 7x = 18}}}

Adding the like terms :


\qquad { \dashrightarrow \: { \sf{ 7y + 9x = 18}}}

Transposing 9y to the other side which then becomes negative :


\qquad { \dashrightarrow \: { \sf{ 7y = 18 - 9x}}}

Dividing both sides by 7 :


\qquad { \dashrightarrow \: { \sf{ (7y)/(7) = (18 - 9x)/(7) }}}


\qquad { \dashrightarrow \: { \sf{ y = (18 - 9x)/(7) }}}

Therefore, the value of y = 18 – 9x/7 .

User Scubabbl
by
2.9k points