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tankabanditka [31]
4 years ago
9

Ii dont understand how to solve a system of linear equations using the substitution method

Mathematics
1 answer:
alina1380 [7]4 years ago
8 0
So 8x-7y=-7
-16+12x=14
you can simplify the sceon equation
-8+6x=7
add 8 to both sides
6x=15
divide by 6
x=15/6
subssitute
8(15/6)-7y=-7
120/6-7y=-7
20-7y=-7
subtract 20
-7y=-27
divide by -7
y=27/7

x=15/6
y=27/7
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If Maria has 56 apples and her brother eats 65 apples that he found in a tree but runs 3 miles how many apples does Maria has?
garik1379 [7]

Answer:

56?

Step-by-step explanation:

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5 0
3 years ago
Read 2 more answers
If DA equals 6 units, AB equals 16 units, and HE equals 36 units, what does EF equal?​
yuradex [85]

Answer:

B. 96 units

Step-by-step explanation:

DA is 6 units and HE is 36 units. There are the same side, but HE is 6 times larger.

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Hope this helps

5 0
4 years ago
1. Find the number of words of length eight of distinct letters of the alphabet so that the words do not have both A and B in th
Angelina_Jolie [31]

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6 0
3 years ago
What is the answer? And how do I Solve, you get brainiest if you show steps clearly.
scoundrel [369]

Step-by-step explanation:

solution,

given

DF = 42

DE = 7x+1

EF = 4x-3

DE = ?

here,

or, DF = DE +EF

or, 42 = 7x+1+4x-3

or, 42 = 11x-2

or, 42+2 = 11x

or, 44/11 = x

or, 4 = x

then,

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4 0
4 years ago
Write the expression below.divide 8 by 6 and then divide 7 by the quotient
larisa [96]

Answer:

Answer is below

Step-by-step explanation:

8/6= 1.33333333

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I hope this helps!

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8 0
3 years ago
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