It is: 7+w
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The number 7 can be added to a variable or number, denoted as "w," in mathematical operations to increase its value. This process is known as addition, one of the basic arithmetic operations. By adding 7 to the variable w, the resulting value will be the sum of w and 7.
100 7*w = number of days in w weeks.
n+7/6
x/4+7=-31
n+7 or X+7
2x + 7 = 15 Subtract 7 from both sides: 2x = 8 Divide both sides by 2: x = 4