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Vladimir [108]
3 years ago
15

I keep getting this wrong can y’all help me please

Mathematics
1 answer:
DENIUS [597]3 years ago
8 0

Answer:

If n is three,

-2n(5+n-8-3n)

-2*3 (5+3-8-3*3)

-6(0-9)

-6*-9

54

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Answer:

x=7

y=18

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The length of each of the two longer sides is 19.

Step-by-step explanation:

2x+5 = x+12 and y-4 = x+5

Solve for x first

2x+5-5 = x+12-5 Subtract 5 from both sides to eliminate it.

2x-x = x-x+7 Subtract x from both sides to eliminate it.

x=7 Now, substitute 7 for x in y-4 = x+5 to solve for y.

y-4 = (7)+5

y-4 = 12

y-4+4 = 12+4 Add 4 to both sides to eliminate it.

y = 18

Finally, we can substitute 7 for x and 18 for y in all equations to see the lengths of each side.

(18)-4=14 The length of each of the two shorter sides is 14.

2(7)+5=19 The length of each of the two longer sides is 19.

8 0
3 years ago
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