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Andreas93 [3]
3 years ago
12

Solve the equation: 9 (x − 9)−3 = −4 (2x + 4) 4 -4 100 68

Mathematics
1 answer:
Nina [5.8K]3 years ago
8 0

Answer:


Step-by-step explanation:

Applying BODMAS here;

We first solve what is in the brackets:

9x - 81 -3 = -8x - 16

We then put the like terms together:

9x + 8x = -16 + 81 + 3

We then do the addition:

17x = -16 + 84

We then do the subtraction:

17x = 68

Simplifying this gives:

x = \frac{68}{17} = 4

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Solution for What is 400 percent of 62:

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Now we have: 400 percent of 62 = 248

Question: What is 400 percent of 62?

Percentage solution with steps:

Step 1: Our output value is 62.

Step 2: We represent the unknown value with $x$.

Step 3: From step 1 above,$62=100\%.

Step 4: Similarly, x=400\%.

Step 5: This results in a pair of simple equations:

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Step 6: By dividing equation 1 by equation 2 and noting that both the RHS (right hand side) of both

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Step 7: Again, the reciprocal of both sides gives

\frac{x}{62}=\frac{400}{100}

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Therefore, 400 of 62 is 248

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