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1.Find the value of x for this simultaneous linear equations.5x + 2y =31-2x + 7y = 11=2.Find the value of y for this simultaneous linear equations.5x + 2y =31-2x + 7y = 11= |
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Answer» X = 5 Step-by-step explanation: 5x + 2y = 31 2y = 31 - 5x y = ( 31 - 5x )/2 -2x + 7 { ( 31 - 5x ) / 2 } = 11 ( - 4x - 35x + 217 ) / 2 = 11 - 39x + 217 = 22 -39x = 22 - 217 -39x = - 195 ( we will cancel - ) 39x = 195 x = 195 / 39 x = 5 ANS. |
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