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Diano4ka-milaya [45]
3 years ago
5

Simplify: (2x-2)+(7x+21)

Mathematics
2 answers:
Nadya [2.5K]3 years ago
7 0
2x-2+7x+21
Now add variable with variable(which contain x) and add numbers with numbers

9x+19
Oduvanchick [21]3 years ago
4 0
Since there is only addition and subtraction between the terms, we can drop the brackets.
= 2x - 2 + 7x + 21
For clarification, we can rearrange the equation. 
= 2x + 7x - 2 + 21
Now we simplify by collecting like terms (the x's must stay together).
= 9x + 19

Hope this helps!
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Step-by-step explanation:

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<u><em>How to solve:</em></u>

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C = 3.14 x 30    ⇒   94.2477796077

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