Answer:
3 tens and 9 ones
Step-by-step explanation:
Answer:
3 tens and 9 ones
Step-by-step explanation:
3 tens= 30
9 ones = 9
30+9=39
The equivalent expression for 3x+12+7x+x is obtained by combining like terms, which gives us 11x + 12.
To find an equivalent expression for the equation 3x+12+7x+x, we need to combine like terms. This principle is similar to the addition of ordinary numbers, where the order doesn't affect the final sum, for example, 2 + 3 equals to 5, just as 3 + 2 equals to 5. In this case, the like terms are the terms that have the variable 'x'.
First, let's add all the terms that contain 'x': 3x + 7x + x. Here, 3x, 7x, and x (which mathematically equals to 1x) are like terms because they all contain the variable 'x'. So, if we combine them, it sums up to 11x.
Then, we can combine this result with the remaining number in the equation, which is 12. Therefore, an equivalent expression for 3x+12+7x+x is 11x + 12.
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Answer:12
Step-by-step explanation:
Counterexample means its not