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Y = 2x-5 5x - 2y = 19 Please fast
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7 votes
Y = 2x-5
5x - 2y = 19
Please fast

User Jarrod Carlson
by
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1 Answer

11 votes

Answer:


y = 2x - 5 - - - eqn \: (i) \\ 5x - 2y = 19 - - - eqn \: (ii) \\ substitute \: for \: y \: in \: eqn \: (ii) \: from \: eqn \: (i) \\ 5x - 2(2x - 5) = 19 \\ 5x - 4x + 10 = 19 \\ x + 10 = 19 \\ x = 19 - 10 \\ x = 9 \\ from \: eqn \: (i) \\ y = 2x - 5 \\ y = (2 * 9) - 5 \\ y = 18 - 5 \\ y = 13

User Suvonkar
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