Solve the following pairs of linear equations:

Question

KnowledgeBoat · Accepted Answer

Substituting in above equations we get, Multiply by 3: 6a + 2b = 1 .......(i) 2a - b = 2 .......(ii) ⇒ -b = 2 - 2a ⇒ b = 2a - 2 Substituting this value of b in equation (i) we get, 6a + 2(2a - 2) = 1 ⇒ 6a + 4a - 4 = 1 ⇒ 10a - 4 = 1 ⇒ 10a = 1 + 4 ⇒ 10a = 5 ⇒ a = ⇒ a = ⇒ ⇒ From (ii) we have, b = 2a - 2 Substituting value of a in above equation we get, b = 2 x - 2 ⇒ b = 1 - 2 ⇒ b = -1 ⇒ = -1 ⇒ = -1 Hence, x = 2 and y = -1.

Mathematics

Solve the following pairs of linear equations:

Linear Equations

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Mathematics

Solve the following pairs of linear equations:

Linear Equations

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Solve the following pairs of linear equations by cross-multiplication method:x - y = a + bax + by = a2 - b2

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x - y = a + b
ax + by = a² - b²

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