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guapka [62]
3 years ago
7

5x + 2y = 7

Mathematics
2 answers:
zvonat [6]3 years ago
8 0

Answer:

(\frac{5}{7},\frac{12}{7})

Step-by-step explanation:

The given system is

5x+2y=7

y=x+1

We substitute the bottom equation into the top equation to get:

5x+2(x+1)=7

Expand to get:

5x+2x+2=7

Group similar terms:

5x+2x=7-2

Combine similar terms:

7x=5

x=\frac{5}{7}

Put x=\frac{5}{7} into the bottom equation

y=\frac{5}{7}+1

y=\frac{5+7}{7}

y=\frac{12}{7}

The solution is

(\frac{5}{7},\frac{12}{7})

erica [24]3 years ago
7 0

Answer: correct answer is {(5/7,12/7)}

Step-by-step explanation:

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