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3x10=(2x10)+(1x_)

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3 Answers

3x10=(2x10)+(1x?)
The first step is to multiply to solve inside the parenthesis
 
3x10=(2x10)+(1x?)
  30 =  (20) + (1x?)
 
Next subtract 20 from both sides
 
30-20=20-20+(1x?)
 
10=1x?
 
Any number multiplied by 1 is itself therefore the answer is 10
 
?=10
Hi Shannon;
3x10=(2x10)+(1x_)
What I believe this is...
 
3x10=2x10+1x?
?=10
3x10=2x10+1x10
 
x10 is a single unit.
It is as single as x.
Just as 2x+x=3x, so too does 2x10+1x10=3x10
 
If I have incorrectly understood the question, please let me know.