Use the elimination method to solve the following pairs of simultaneous linear equations: (a) 2r +

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Use the elimination method to solve the following pairs of simultaneous linear equations:

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Mathematics for Economics and Business

ISBN: 978-1292191669

9th edition

Authors: Ian Jacques

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Question Posted: Apr 18, 2019 08:42 AM

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Use the elimination method to solve the following pairs of simultaneous linear equations: (a) 2r +

Question:

(a) – 2r + y = 2 2r + y = -6 (b) 3x + 4y = 12 x + 4y = 8 (c) 2x + y = 4 4x 3y = 3 (d) x + y = 1 6x + 5y = 15

Step by Step Answer:

a Step 1 Add the two equations to eliminate x 2xy2 2xy6 2y4 Step 2 The equation 2y 4 has solution y4...View the full answer

Mathematics for Economics and Business

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