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kari74 [83]
2 years ago
11

Which is more efficient way to solve this equation x + 7 = 12

Mathematics
2 answers:
SCORPION-xisa [38]2 years ago
8 0

Answer: subtract 5 from both sides to get x by itself

Step-by-step explanation:

kari74 [83]2 years ago
4 0

Answer:

x=5

Step-by-step explanation:

x+7=12

x=12-7

x=5

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In three more years Miguel's grandfather will be six times as old as Miguel was last year. When Miguel's grandfather present age
lora16 [44]
"In three more years,Miguel's grandfather will be six times as old as Miguel was last year. When Miguel's present age is added to his grandfather's present age, the total is 68. How old is each one now?"

Miguel is 11 years old and his grandfather is 57 years old.
Last year Miguel was 10. In three more years his grandfather would be 60. 60/6=10. 11+57=68


7 0
3 years ago
Can you guys help me please
aleksandrvk [35]

Answer:

Below

Step-by-step explanation:

Angle A= 65 degrees

Angle N= 53 degrees

Angle L= 45

4th image= x=30

                   2x=60

5th image= x=50

                      x+30=80

Please tell me if this helps!

6 0
2 years ago
Find a and b: (10-4i)-(a+bi)=(6-6i)
cestrela7 [59]

Answer:

look at attached image, hope this helps! :)

7 0
3 years ago
Explian how to tell wherher (2,-1) is a solution of the equation y=3x-2
jolli1 [7]

Answer:

it is not a solution

Step-by-step explanation:

You would plug them in

-1=3(2)-2

-1=6-2

-1=4

4 0
3 years ago
Read 2 more answers
Please help me with this
Gnoma [55]

Given:

The equation is:

3^x\times 9=3^{2n-1}

To find:

The value of n in terms of x.

Solution:

We have,

3^x\times 9=3^{2n-1}

It can be written as

3^x\times 3^2=3^{2n-1}

3^{x+2}=3^{2n-1}                [\because a^ma^n=a^{m+n}]

On comparing the exponents, we get

x+2=2n-1

Add 1 on both sides.

x+2+1=2n-1+1

x+3=2n

Divide both sides by 2.

\dfrac{x+3}{2}=n

Therefore, the value of n is terms of x is n=\dfrac{x+3}{2}.

7 0
3 years ago
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