Solve the following simultaneous linear equations:
12x + 13y = 29
13x + 12y = 21
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Step-by-step explanation:
12x+13y=29
13x+12y=21
(12x+13y=29)13
(13x+12y=21)12
156x+169y=377
156x+144y=252
156x+169y=377
-156x-144y=-252
25y=125
y=5
Sub value of y in any equation
156x+169*5=377
156x+845=377
156x=377-845
156x=-468
x=-3
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