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OlgaM077 [116]
3 years ago
8

What's the value of a when 3-a+5-2a=17

Mathematics
2 answers:
Sveta_85 [38]3 years ago
8 0
First combine like terms to get:
-3a + 8 = 17

Solve by subtracting 8 then dividing by -3:
-3a = 9
a = -3
Flura [38]3 years ago
6 0
Here's are the steps to solving it.

3-a+5-2a=17
-3a=9
a=-3
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Use the rule for order of operations to simplify the expression as much as possible.
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Answer:

The answer to your question is 3

Step-by-step explanation:

Expression

                        3⁴ + 9² / 3³ - 9²

1.- Do the division

                        3⁴ + (9² / 3³) - 9²

Use law of exponents

                        3⁴ + (3⁴ / 3³) - 9²

                        3⁴ + 3⁴⁻³ - 9²

Simplify

                        3⁴ + 3 - 9²

2.- Convert 9² to base 3

                        3⁴ + 3 - 3⁴

3.- Simplify (associative property)

                        ( 3⁴ - 3⁴ ) + 3

4.- Result

                              3

                       

                       

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Step-by-step explanation:
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