X+3=8
n+3 the sum of a number and three means a number plus three.
in the equation 3+4=7, 3 and 4 are the addends. 7 is the sum.
It means that some number is having 14 added to it. The sum of 3 and 14, for example is 3 + 14.
If: 9+x = 3 then x = -6
The equation for three times the sum of a number ( x ) and five times the number can be expressed as ( 3(x + 5x) = 36 ). Simplifying this gives ( 3(6x) = 36 ), or ( 18x = 36 ). To solve for ( x ), divide both sides by 18, resulting in ( x = 2 ).