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Solve the equations x + y = 300 and 12x + 15y 4,140
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14 votes
Solve the equations x + y = 300 and 12x + 15y
4,140

User Belinda
by
4.6k points

1 Answer

3 votes

Answer:

x=120

y=180

Explanation:

x=300-y

12x+15y=4140

12(300-y)+15=4140

y=180

substitute

x=300-180

x=120

User Webdma
by
3.6k points
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