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Substitute 3x-5y=-1and x-y=-1 |
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Answer» ) = ( -2 , -1 )Step-by-step explanation:3X - 5y = -1 ... ( 1 )x - y = -1 ... ( 2 )Multiply equation ( 2 ) with 5( x - y = -1 ) × 55x - 5y = -5 ... ( 3 ) Substrate equation ( 1 ) amd equation ( 3 )We get, 3x - 5y = -1 - 5x - 5y = -5 = -2x = -6-2x = 4X = 4 / -2x = -2Putting the value of x in equation ( 1 ) We get, 3x - 5y = -1 ... ( 1 )3 ( -2 ) - 5y = -1 -6 - 5y = -1-5y = -6 - ( -1 ) -5y = 5y = 5 / -5y = -1( x , y ) = ( -2 , -1 )___________________________Let's check the value of x = -2 and y = -1 by putting them in equation ( 2 ) x - y = -1 ... ( 2 )-2 - ( -1 ) = -1-1 = -1( x , y ) = ( -2 , -1 ) |
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