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3 years ago

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

Mathematics

2 answers:

Lunna [17]3 years ago

4 0

Answer: SECOND OPTION

Step-by-step explanation:

You can solve the system of equations by the method of substitution:

- You must susbtitute the second equation into the first equation and solve or x:

$7x+2(x+1)=4\\7x+2x+2=4\\9x=4-2\\9x=2\\x=\frac{2}{9}$

- Now, you must susbtitute the value of x obtained above into the second equation to calculate the value of y. Then, you have:

$y=\frac{2}{9}+1\\\\y=\frac{2+9}{9}\\\\y=\frac{11}{9}$

Therefore, you obtain:

( $\frac{2}{9},\frac{11}{9}$ )

Oksi-84 [34.3K]3 years ago

4 0

<h2>Answer:</h2>

<u>The solution of system is </u><u>x= 2/ 9 and y= 11/ 9 </u>

<h2>Step-by-step explanation:</h2>

See the attached figure

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Hey Tierra7l,

Lets solve your equation together step by step.

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$\mathrm{Add\:}10\mathrm{\:to\:both\:sides}$

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