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Solve the following pair of linear equations by the substitution method- 3x+6y=3900,x+2y=1300 |
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Answer» Step-by-step EXPLANATION: Take any 1 equation and FIND the x or y VALUE as follows x+2y=1300 x=1300-2y here we the x value substitute the x value in another equation -3*1300-2y+6y=3900 -3900+6y+6y=3900 -3900+12y=3900 -3900-3900+12y=0 -7800+12y=0 now find the y value y=650 substitute in any of the ONE equation x+2y=1300 x-2*650=1300 x-1300=1300 x=2600 Therefore x=2600 and y=650 |
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