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Talja [164]
3 years ago
7

Solve x - 12 = 7 using algebraic operations​

Mathematics
2 answers:
White raven [17]3 years ago
5 0

Answer:

19

Step-by-step explanation:

add 12 to both sides to get x = 19

12 + 12 = 0 since your getting rid of the constants and 12 + 7 = 19 so x = 19

Use the opposite operation in which its formed in

For example 3x = 18

you would have to multiply 3 by x right? So the opposite operation of that is divide by 3 since you dont know the value of x so do the known value which is the number 3 once you divide 18 by 3 you get 6 so put 6 on the right side and keep the equal sign between them to get x = 19.

Romashka [77]3 years ago
3 0

Answer:

19

Step-by-step explanation:

  1. Add 12 to each side: -12 + 12 = 0, 7 + 12 = 19

I hope this helps!

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Step-by-step explanation:

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tekilochka [14]
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3 years ago
................................................................................................................................
Romashka [77]

Answer: second option

Step-by-step explanation: To solve this problem, we will need to plug in the value of “x” into our equation to see if it makes sense.

Let’s start by going in order.

-4.9 = -5.7 + 10.6 = 4.9

This will not be the answer because it’s positive 4.9 not negative.

Let’s go on to the last one. If we add positive 0.8 to negative 5.7 we will get the answer of -4.9 and this makes sense.

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3 years ago
Read 2 more answers
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