solve the equation by substitution method 2x+3y=7 3x-y=5
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Heyy mate ❤✌❤
Here's your Answer...
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✴ 2x + 3y = 7
=> 2x = 7 - 3y
=> x =( 7- 3y)/2 --------(1)
Putting equation 1 in equation 2.
=> 3x - y = 5
=> 3 ×( 7 -3y)/2 -y =5
=> 21/2 - 9/2y - y = 5
=> 21/2 - 5 = 9/2y + y
=> (21 - 10)/2 = (9y + 2y)/2
=> 21 - 10 = 9y + 2y
=> 11 = 11y
=> y = 1.
Putting y=1 in equation 1.
2x + 3y = 7
=> 2x = 7 - 3
=> x = 4/2
=> x = 2.
✔✔✔
Here's your Answer...
⤵️⤵️⤵️⤵️⤵️⤵️
✴ 2x + 3y = 7
=> 2x = 7 - 3y
=> x =( 7- 3y)/2 --------(1)
Putting equation 1 in equation 2.
=> 3x - y = 5
=> 3 ×( 7 -3y)/2 -y =5
=> 21/2 - 9/2y - y = 5
=> 21/2 - 5 = 9/2y + y
=> (21 - 10)/2 = (9y + 2y)/2
=> 21 - 10 = 9y + 2y
=> 11 = 11y
=> y = 1.
Putting y=1 in equation 1.
2x + 3y = 7
=> 2x = 7 - 3
=> x = 4/2
=> x = 2.
✔✔✔
fiza78654:
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