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Given that a = 3 and b = 7 , What is the value of 2a + b ?

This is a case of substitution. 2(3)+(7) =13

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Answered by Shayna B. • Maths tutor

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Solve the two equations: Equation 1: 2a - 5b = 11 Equation 2: 3a + 2b = 7

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