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worty [1.4K]
3 years ago
6

X+y=73x+y=15solve by substitution method​

Mathematics
1 answer:
Bess [88]3 years ago
7 0

Step-by-step explanation:

x =7-y

subs x in eqn 2

3(7-y)+y=15

21-3y+y=15

21-2y=15

21-15=2y

6=2y

y=6/2

y=3

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4 years ago
Can someone please tell me how to do this
marin [14]

Answer:

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4 0
3 years ago
a factory makes 12 bikes in 3 hours. if it keeps making bikes at the same rate, how many bikes will it have made in 8 hours?
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8 0
3 years ago
Zeljko's father bought a new TV for $660. He is paying it off monthly for one year. How much does he pay each month?
liberstina [14]

Zeljko's father pays $55 each month.

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Learn more here:

brainly.com/question/25453114

7 0
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