This equation can be expressed as: abs(55- 4x) = 15, where abs = absolute value. x can equal 10 or 17.5.
75
The fifth root of fifteen = 1.718772
The square root of a number is the inverse of the square. For example, three squared equals nine, so the square root of nine is equal to three.
expressions don't have an equal sign and equations do
An equation has an equal = sign whereas an expression does not.
The difference between a number x and twice y is equal to fifteen.
The number 12.
There is no difference in value between "equal" fractions: the difference is zero.
It is equal to the difference between atomic number and Atomic Mass number. A+
one third of the difference between ten and a number
The number of neutrons of an isotope is the difference between the mass number of the isotope and the number of protons (equal to atomic number).
a number sentence contains an equal sign
19
The difference between a number and its reverse must be divisible by 9. 42 is NOT divisible by 9. There is, therefore, no such number.
It is equal to the number of neutrons in the nucleus, not nucleons (which include both protons and neutrons.)
75
0.8