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Solve the following pairs of equation by reducing them to a pair of linear equations.1/4x + 1/3y = 3/2 and 1/5x + 1/2y = 19/10 please explain the answer |
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Answer» Step-by-step explanation: let 1/X be A and 1/y be B 4A + 3B = 3/2 5A + 2B = 19/10 --------------------- 8A + 6B = 3 MULTIPLY with 10 50A + 20B = 19 multiply with 3 --------------------- 80A + 60B = 30 150A + 60B = 57. ( subtraction so signs change) ------------------------- - 70A = - 27 A= -27/-70 A= 27/70 Substitute in this 8A + 6B = 3 8(27/70) + 6B = 3 216+ 420B = 3× 70 420B = 210- 216 B = -6/420 B = -1/70 therefore X = 70/27 = 2.59 and Y = - 70 hope this helps you please mark this answer brainliest follow too plz bro |
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