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omeli [17]
4 years ago
8

Maya solved an equation incorrectly, as shown below: Step 1: 4x = 28 Step 2: x = 28 − 4 Step 3: x = 24 Which statement best expl

ains why Step 2 is incorrect in Maya's solution?
Mathematics
1 answer:
tino4ka555 [31]4 years ago
7 0

Answer:

Only Use addition or subtraction if the unknown variable is alone and not combined with a Number .

<u><em>EXPLANATION :</em></u>

Given step 1 to be =

4x = 28

Following the third law,

The correct solution would have been

Divide both sides of the equation by 4

x = 7

Step-by-step explanation:

"A General Rule for Solving Equations

  • Simplify each side of the equation by removing parentheses and combining like terms.
  • Use addition or subtraction to isolate the variable term on one side of the equation.( Note : This law can only be applies if the variable is alone e.g x and not combined e.g 4x)
  • Use multiplication or division to solve for the variable" ( If variable is combined . Example : 4x
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The perimeter of a rectangular garage is 44 meters. the garage is 12 meters long. how wide is it?
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To find the perimeter you do 2l + 2w.

l is length
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put in the values we know

2(12) + 2w = 44

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Answer:

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Let x denotes number of elephants having broken tusks out of 600 elephants.

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