Mathematics: 7x + 2y = 4 y = x + 1 solve the system of equations. a. (1/3, 4/3) b. (2/9,11/9) c. no solution

7x + 2y = 4 y = x + 1 solve the system of equations.

Ответ:

arosh4763

05.01.2022

$7x + 2(x + 1) = 4 \\ 7x + 2x + 2 = 4 \\ 9x + 2 = 4 \\ 9x = 2 \\ x = \frac{2}{9} \\ \\ y = \frac{2}{9} + 1 = \frac{11}{9} \\ ( \frac{2}{9} \: \frac{11}{9} )$

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Ответ:

josephicarusmarrujo

17.05.2020

Mathematics

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7x + 2y = 4
y = x + 1
solve the system of equations.
a. (1/3, 4/3)
b. (2/9,11/9)
c. no solution

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