Question

4x + 60y = 156 ; 4x + y = 38. Solve by Substitution method
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Answer 1

Answer:

lodu lalit lodu lalit lodu lalit lodu lalit lodu lalit lodu

Answer 2

Answer:

(9,2)

step-by-step explanation:

4x+60y=156 (I)

4x+y=38 (II)

equation I can be simplified as 4(x+15)=156

x+15=156/4

x+15y=39 (III)

in equation II it is easier to express y in terms of x.

therefore, 4x+y=38

y= 38-4x

y=-4x+38

by substituting

y=-4x+38 in equation  III we get,

x+15(-4x+38)=39

x-60x+570=39

-59x=39-570

-59x=-531

x=-531/-50

x=9

by substituting x=9 in y=-4x+38 we get,

y=2.