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maks197457 [2]
3 years ago
15

Can someone do this equation for me -11=a+5+7a

Mathematics
2 answers:
evablogger [386]3 years ago
8 0

Answer:

a=-2

Step-by-step explanation:

5 go to another side by negative sign

and the coefficients of a will added

-16=8a

8 go to the other side

a=-2

BlackZzzverrR [31]3 years ago
5 0

Answer:

a = -2

Step-by-step explanation:

  1. Combine like terms: 7a + a = 8a
  2. Re-write the expression: -11 = 5 + 8a
  3. Subtract 5 from each side, so it now looks like this: -16 = 8a
  4. Divide each side by 8 to cancel out the 8 next to a. It should now look like this: -2 = a

I hope this helps!

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8z-13=7 what's the number that replaces z
Goshia [24]
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3 years ago
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Can you please help me thanks
mash [69]

Answer:

x = 9.6

Step-by-step explanation:

Before we can figure out what x is, we need to figure out what the unlabeled side is. To figure that out, multiply the hypotenuse (12) by the sine of the angle labeled (34)

12 * sin(34)

<em>sin(34) equals 0.559192903470747; I'll round it to 0.6 for convenience.</em>

12 * 0.6

<em>Now simply multiply 12 by 0.6 to get 7.2.</em>

The unlabeled side is approx. 7.2 units long.

Now we know what the unlabeled side is. Now, to find x, find the square root of 12 squared minus 7.2 squared.

x = √12² - 7.2²

<em>12 squared is 144; 7.2 squared is 51.84.</em>

x = √144 - 51.84

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x equals 9.6.

6 0
2 years ago
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Komok [63]

Answer:

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makvit [3.9K]

Answer:

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Step-by-step explanation:

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