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sweet-ann [11.9K]
3 years ago
7

Find the solution of this system of two linear equations using substitution 11x+3y=103 and y =3x+1

Mathematics
1 answer:
Lesechka [4]3 years ago
8 0
11x+3y=103 and y=3x+1. 

11x+3(3x+1)=103  -----> plug in (3x+1) for y in the first equation.  You will want to distribute the 3 to the 3x+1 to get something that looks like:

11x+9x+3=103    ------> now you want to combine like terms 

20x+3=103 ---> subtract 3 from both sides
20x=100   ----> divide both sides by 20
x=5    

y=3(5)+1     ---> I like to plug in this to the equation that already has y isolated.  3*5 is 15, add 1 and you find that y=16.

(5, 16) will be your final answer (:
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6 0
4 years ago
Read 2 more answers
In the construction of a segment congruent to a given segment shown, what is CD?
pogonyaev

If segments AB and CD are congruent, then they have equal lengths:

5x-2=2x+7.

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1. Separate terms with x and without x in different sides:

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Avery prepares 2 equal-size oranges for the bats at the zoo. one dish has 3/8 of an orange. another dish has 1/4 of an orange. W
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