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Ksivusya [100]
2 years ago
11

28 is 9 less than twice a number

Mathematics
2 answers:
larisa86 [58]2 years ago
7 0

Answer:

18.5

Step-by-step explanation:

28+9 = 37

so 37 divided by 2 = 18.5

28 is 9 less than 18.5 twice (37)

photoshop1234 [79]2 years ago
5 0

Answer:

Step-by-step explanation:

28=2x-9

37=2x

x=18.5

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3 0
3 years ago
Solve the following equation for x. Round the answer to the nearest hundredth.
Serhud [2]

Hence, option D 4: x=-1.34 is correct

Further explanation:

In order to solve an equation in one varible we have to isolate the variable on one side of the equations

Given equation is:

-1.2x=2(x+2.15)\\Simplifying\\-1.2x=2x+4.3\\Subtracting\ 2x\ from\ both\ sides\\-1.2x-2x=2x+4.3-2x\\-3.2x=4.3\\Dividing\ both\ sides\ by\ -3.2\\\frac{-3.2x}{-3.2}=\frac{4.3}{-3.2}\\x=-1.34375\\Rounding\ off\ to\ nearest\ 100th\\x=-1.34

Hence, option D: x=-1.34 is correct

Keywords: Linear equation in one variable, Solution of equation

Learn more about Linear equations at:

  • brainly.com/question/9738996
  • brainly.com/question/10196212

#LearnwithBrainly

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