I need to solve using the elimination method
5x + 5y = -13
7x - 3y =17

Question

anonymous · Answer

multiply first by 7 :        35x + 35y = -91            ----(A)
multiply second by 5 :   35x - 15y = 85               ----(B)

(A) - (B) gives  50y = - 176     (We have eliminated x terms here)
so y = -176/50 = -88/25

Put y = -88/5 in your original second equation to get

7x -3(-88/5) = -13
7x + 264/5 = -13
7x = -13 - 264/5
7x = -329/5
x = -329/35
x = -47/5
 so final answer is x = -47/5      and y = -88/25

anonymous · Answer

Thank you

anonymous · Answer

I hope u hv understood the method
The aim is to eliminate one of the variables so that only one is left
once we have the value of one variable we can find the value of the other too

anonymous · Answer

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