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lord [1]
3 years ago
10

Which of these shows the result of using the first equation to substitute for y in the second equation, then combining like term

s?
y = 3x
2x + 3y = 55

A. 11x = 55
B. 5x = 55
C. 9x = 55
D. 5y = 55
Mathematics
2 answers:
AURORKA [14]3 years ago
5 0

11x=55 just took the test

const2013 [10]3 years ago
4 0

Answer: A. 11x=55

Step-by-step explanation:

The given system of equations:

y = 3x.....................(1)\\\2x + 3y = 55.................(2)

When we substitute the value of y in equation (2), we get

2x+3(3x)=55\\\\\Rightarrow\ 2x+9x=55\\\\\Rightarrow\ 11x=55

Hence, the result of using the first equation to substitute for y in the second equation, then combining like terms is 11x=55

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