Let X = the number
X + 2 = 3X+6
subtract x from both sides
2 = 2X +6
2X + 6 = 2
subtract 6 from both sides
2X = -4
divide by 2
X = -2 = the number
There is no such number.
-9.
-64
If they are two different unknowns then it is: 4x+8y = 36 If they are the same unknowns then it is: 4x+8x = 36 in which x works out as 3
987 - 345 = 642
50
There is no such number.
It is called a sum or an equation
To balance a equation, the whole number added or used in front of a compound is known as Coefficient.
9 x represents a number so in this equation it basically means what number is added to 9 to make 18 to work it out you do 18-9=9
14
Any number added to its negative equals zero.
A linear relationship. Added: And a function.
No. There are 2 Na atoms being added to 1 Cl atom.
-9.
357
They fit the equation t = 0 exactly.