Geometry math question no Guessing and Please show work thank you
2 answers:
DE + EF = 4x+2
DE = x+7
EF = 7
Substitute these in
x + 7 + 7 = 4x + 2
x + 14 = 4x + 2
subtract x from both sides
14 = 3x + 2
subtract 2 from both sides
3x = 12
divide both sides by 3
x = 4
substitute this in to find the length of DE
DE = x + 7
(4) + 7 = 11
the answer is 11
From figure we can see that:
DE=DF -EF
x+7 = 4x+2-7
combining like terms
x+7=4x-5
subtract x on the right side from 4x
7=(4x-x) -5
7=3x-5
add 5 on the left side
7+5=3x
12=3x
divide both sides by 3
x=4
DE=x+7 =4+7
DE=11
You might be interested in
when you subtract a negative number from any platitude number the equation changes to addition so you would add the value of the negative number to 1.
Leah is 24 and her cousin is 12. Since 24 is double of 12, thats your answer and it makes the most sense.
Answer: y=2x-3
Step-by-step explanation:
divide both sides by 7
7y/7=(14x-21)/7
y=2x-3
The answer is c. 7 units .
Answer:
C is the sorrect because those both lines are equal
Step-by-step explanation:
