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bija089 [108]
3 years ago
11

Twice a certain number minus 7 is equal to 5. What is the number.

Mathematics
2 answers:
Mandarinka [93]3 years ago
8 0

Answer:

6

Step-by-step explanation:

2x-7=5

2x=12

x=6

x=the varible that represents the number

zepelin [54]3 years ago
6 0

Answer:

6

Step-by-step explanation:

Let the number be x.

2x - 7 = 5

Add 7 to both sides.

2x = 5 + 7

2x = 12

Divide 2 into both sides.

x = 12/2

x = 6

The number is 6.

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5 0
3 years ago
Fwam answered 142 questions correctly on his multiple choice science final that had
Ipatiy [6.2K]

Answer:

71%

Step-by-step explanation:

Percentage Chart

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8 0
3 years ago
-3(1-2x)=3x+3(x-3)+6
deff fn [24]

Let's solve this problem step-by-step.

−3(1−2x)=3x+3(x−3)+6

Step 1: Simplify both sides of the equation.

−3(1−2x)=3x+3(x−3)+6

(−3)(1)+(−3)(−2x)=3x+(3)(x)+(3)(−3)+6(Distribute)

−3+6x=3x+3x+−9+6

6x−3=(3x+3x)+(−9+6)(Combine Like Terms)

6x−3=6x+−3

6x−3=6x−3

Step 2: Subtract 6x from both sides.

6x−3−6x=6x−3−6x

−3=−3

Step 3: Add 3 to both sides.

−3+3=−3+3

0=0

So, 0=0 or all real numbers.

6 0
3 years ago
Solve the inequality 7(x - 2) < -5.
madam [21]
The answer is x < 9/7
5 0
3 years ago
Read 2 more answers
Represent this statement as an equation: Six more than twice a number is 20.
inna [77]

Answer:

2x+6=20

Step-by-step explanation:

4 0
3 years ago
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