z + 12
"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
"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.
x=y-8 z=x+12
The algebraic expression for 84 divided by the number ( z ) is ( \frac{84}{z} ). This expression represents the quotient of 84 and the variable ( z ).
If you mean z-9=3, then z=12. That means you can make any algebraic expression that makes sense. e.g. z+1=13.
z + 8 - 2 is an expression, not an equation. An expression cannot be solved. At best, you can simplify it to z + 6.
It is: z-8
z/.07
z+7
The algebraic expression for the quotient of 3 and the sum of z and 5 is 3 / (z + 5). In this expression, the numerator is 3, and the denominator is the sum of z and 5. This expression represents dividing 3 by the sum of z and 5.
The normal way to write z times 19 in an algebraic expression is 19z.
The expression "3 divided by z" is represented mathematically as ( \frac{3}{z} ). The result depends on the value of ( z ); as long as ( z ) is not zero, this expression will yield a numerical value. If ( z = 0 ), the division is undefined.