Please Solve these equations ..
by eliminating method..
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Answer:
a) x = 4 y = 7
b)
Step-by-step explanation:
a) 9x - 4y = 8 equ (1)
13x + 7y = 101. equ (2)
multiply equ (1) with 7 and equ (2) with 4
63x - 28y = 56
52x + 28y = 404
add the equation we get
115x = 460
x = 460/115
x = 4
substitute x = 4 in equ (1)
9(4) - 4y = 8
36 - 4y = 8
4y = 36 - 8
4y = 28
y = 28/4
y = 7
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