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5x - 2y = 193х + y = 18 |
Answer» X = 5, Y = 3Step-by-step explanation: 5x - 2Y = 19 x = ( 19 + 2y ) / 5 3x + y = 18 3( 19 + 2y ) / 5 + y = 18 57 / 5 + 6y / 5 + 5Y / 5 = 18 11y / 5 = 18 - 57 / 5 11y / 5 = ( 90 - 57 ) / 5 y = 33 / 5 × 5 / 11 y = 3x = ( 19 + 2y ) / 5 = [ 19 + 2(3) ] / 5 x= 25 / 5 or 5
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