z + 12
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Oh, dude, it's like super simple. If you wanna express z increased by 12, you just write it as z + 12. It's like saying, "Hey, z, you plus 12, cool?" So, yeah, just add those two together and you're good to go.
"decreased by" means "minus" 12 decreased by z means 12 - z It really is that simple.
x + 12. If the unknown number is represented by x, the expression for a number increased by 12 would be x + 12.
Actually, 2x + 3y + z is an expression, because it is a mathematical noun.
The algebraic expression "twice a number z" can be represented as 2z. In this expression, the variable z represents the unknown number, and multiplying it by 2 gives you twice that number. This expression can be used in algebraic equations and formulas to represent scenarios where a number needs to be doubled.
z - 7