Respuesta :
Answer:
7-(-12)= 19
Step-by-step explanation:
7-(-12)changes to 7+(12) with the rule of Same Change Change or SCC.
And 7+12 is 19.
The incorrect step is 7 + (-12) the correct step is 7 + 12 and the answer is 19.
What is an arithmetic operation?
It is defined as the operation in which we do the addition of numbers, subtraction, multiplication, and division. It has a basic four operators that is +, -, ×, and ÷.
It is given that:
= 7 - (-12)
= 7 + (-12) (incorrect step)
The correct step is:
= 7 + 12
= 19
The difference of 7 and -12 is 19 because 7 + (-12) = 7 + 12 = 19
A number is a mathematical entity that can be used to count, measure, or name things. For example, 1, 2, 56, etc. are the numbers.
The error is in the step 7 + (-12) as the multplication of two negative signs is positive.
Thus, the incorrect step is 7 + (-12) the correct step is 7 + 12 and the answer is 19.
Learn more about the arithmetic operation here:
brainly.com/question/20595275
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