Question 662280
Solve the system by the substitution method

4x + y = 25 --> y = 25 - 4x
3x + 4y= 22
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Sub for y in the 2nd eqn
3x + 4*(25-4x) = 22
3x + 100 - 16x = 22
-13x = -78
x = 6
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y = 25-4x
y = 1
--> (6,1)
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If you sub (5,10), you'll see it doesn't fit