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Solve the following pair of equations …

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Solve the following pair of equations by substitution method - 7 x minus 15 Y is equal to 2 and X + 2 Y is equal to 3

Posted by Maitreyee Dawle 3 years, 6 months ago

CBSE > Class 10 > Mathematics

2 answers

Sourav Keshri 3 years, 6 months ago

X =(2+15y)/7 Y =19/17

Shubham Kumar 3 years, 6 months ago

Here your answer goes Step :-1 Take one equation from the two equations and represent it in the form of x and y by replacing 7x - 15y = 2----- > 1 x + 2y = 3------- > 2 Take equation 2 x = 3 - 2y ------>> 3 Step :- 2 Now , Substitute the value of x in equation 1 7 ( 3 - 2y ) - 15 = 2 21 - 14y - 15y = 2 21 - 29y = 2 -29y = 21 - 2 y = 29/19 Step :- 3 Put the obtained value of y in equation 3 x = 3 - 2yx=3−2y x = 29/49 Hope you like this answer

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