15x+y=62;3x-4y=112 apply substitution method
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Heya!!
Step-by-step explanation:
15x + y = 62
y = 62 - 15x
3x - 4y = 112
3x - 4(62 - 15x) = 112
3x - 248 + 60x = 112
63x - 248 = 112
63x = 248 + 112
63x = 360
x = 360/63
x = 120/21 = 40/7
x = 40/7
y = 62 - 15x
= 62 - 15(40/7)
= 62 - 600/7
= (434-600) /7
= -166/7
Hope it helps..!
Answered by
0
Answer:
this anwer is -166/7 is our answer
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