Well since an equation has an equal sign it is 6+7=13
The expression (not equation) is 6 + 7
20
the sum of -2 and 6 and 7 is (-2+6+7)
Writing an equation for the sum of six and seven means expressing the mathematical operation of adding these two numbers together. In equation form, this can be represented as (6 + 7 = 13). This shows that when you add six and seven, the result is thirteen.
in the equation 3+4=7, 3 and 4 are the addends. 7 is the sum.
The expression (not equation) is 6 + 7
that's stupid
6+7=x
The sum of six and seven is expressed as six plus seven. The full equation would be six plus seven equals thirteen.
this is actually an equation let the 'sum' be x we are assuming r means are meaning = so x/6 = 7 x=42 so thats the answer
20
the sum of -2 and 6 and 7 is (-2+6+7)
The solution (not sum) to the equation 21 = 3c + 6 is as follows:21 = 3c + 621 - 6 = 3c + 6 - 615 = 3c3c = 153c/3 = 21/3c = 7
x+ y = 8 is one equation; x - y = 6 is another equation add equations and 2x = 14 x = 7 y = 1
29.
-4 + 7 = 3
6 + 7 = 13(Sum means add)