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photoshop1234 [79]
3 years ago
14

How would I solve y=5x-2 & -14x+y=16 in a substitution equation

Mathematics
1 answer:
Aleks04 [339]3 years ago
7 0
You would substitute the given value of “y” into the equation of -14x+y=16
-14x+5x-2=16

Then you would solve for “x”
x=2

You would then substitute the value of “x” into the equation to solve for “y”
y=5(2)-2

Which would then give you a value for “y”
y=12
So the answer is (2,12)

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When you add a positive number and a negative, how
Len [333]

Answer:

The answer would be B. When you add a negative and a positive it equals a negative, Like when adding a positive and a negative. But, adding two that are the same, like a positive and a positive equals a positive.

Step-by-step explanation:

6 0
3 years ago
Can u solve both 20. and 22.<br><br> Geometry
SCORPION-xisa [38]

Hey there!!

(1) Both the angles sum up to be 180.

(2) Both the angles sum up to be 90

_________________

(1) 4x+5+8x-5=180

... 12x=180

... x= 180/12

... x = 15

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(2) 4z+3z+6=90

... 7z+6=90

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Hope it helps!


8 0
4 years ago
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denis-greek [22]

Answer:

-t2+10t-h+8  = 0

Step-by-step explanation:

5 0
3 years ago
Will someone pls help asap
Strike441 [17]

Answer:

44

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Length of a rectangle is 4 inches less than twice it’s width of the perimeter is 70 inches what’s the dimensions?
Vedmedyk [2.9K]
W= width
L= length= 2W-4
Perimeter= 70

FIND WIDTH:
P= 2(L + W)
P= 2L + 2W
substitute 2W-4 for L
70= 2(2W-4) + 2W
multiply 2 by all in parentheses
70= (2*2W) + (2*-4) + 2W
70= 4W - 8 + 2W
combine like terms
70= 6W - 8
add 8 to both sides
78= 6W
divide both sides by 6
13= W

FIND LENGTH:
substitute w=13 to find width
L= 2W-4
L= 2(13)-4
L= 26-4
L= 22

CHECK:
P= 2(L + W)
70= 2(22 + 13)
70= (2*22) + 2(13)
70= 44 + 26
70= 70

ANSWER:
length= 22 inches
width= 13 inches

Hope this helps! :)
3 0
3 years ago
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