Solve the following pair of linear equations by substitution and elimination method:
a) x-y +1=0
3x - 5y +1=0
b) -3y + 2x 12 = 0
x+2y + 1 = 0
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(a)substitution method x=-2,y=-1
elimination method same values of x and y as substitution method
(b)write the proper question you will get the answer like me and mark me brainliest
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