Without an equality sign it can not be considered to be an equation and the - or + values of y and 12 are not given
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The solution set is the answers that make an equation true. So I would call it the solution.
Yes, because the equation is linear, there is only one solution:4x - 3 = 12 +2x4x - 2x = 12 + 32x = 15x = 7.5There is no other solution
The equation 6 + y = 12 is a simple equation in one variable. If you add 6 to both sides of the equals sign, you get y = 18, and that is the solution.
The equation for the statement "A number n is 5 more than 12" can be written as n = 12 + 5. This equation represents that the value of n is equal to 12 (the initial number) plus 5 (the additional amount). Therefore, n = 17 is the solution to the equation.