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2*(3+x)-5

 May 24, 2017
 #1
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6+2x-5 

1+2x

 May 24, 2017
 #2
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  2*(3 + x) - 5

= 2*3 + 2*x - 5 <--- multiply the thing inside the bracket by 2

= 6 + 2x - 5 <--- 2*3, basic math.

= 2x + 6 - 5 <--- rearrange.

= 2x + 1 <--- 6 - 5, basic math again.

 May 25, 2017

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