If a + b = 6, what is the value of 3a + 3b?
2a+b=2a+b. Without a value for a and b, the expression has no value.
The expression (a+b) + (a-b) can be rewritten as a + b + a - b = 2a.There is no need to use absolute value.
That depends what either the value of a or the value of b is.
Depends on what the value of B is. It can be written as b+3
b + b + b + 7 = 223b + 7 = 223b = 15b = 5
Not by itself. If you said a+++b, then that would mean to add the incremented value of b to a and generate a result, but +++b is not valid.
That depends on the value of the variables (A, B, and C). It can be anything.
It is impossible to give any decimal/numeric value if we are not given the values of at least one variable, so the answer is B + B + B + C + C + C.