Quantities that are equal can be added or subtracted from both sides of an equasion.
For example:
x + 2 = 36
subtract both sides by 2
x = 34
Identical quantities can be added (or subtracted) from each side. Each side can also be multiplied (or divided) by any quantity.
Any two non-zero quantities are always proportional. If the two quantities are X and Y, they are proportional to X/Y.
an equation ---------- has a soultion? a)always B)sometimes C)never
you will always have an odd number when you subtract an odd number from am even number
Yes. That's why it's called a linear equation
Equal quantities.
Equal
Identical quantities can be added (or subtracted) from each side. Each side can also be multiplied (or divided) by any quantity.
The size of the quantities involved doesn't matter. As long as you add or subtract (or divide or multiply) the same number to or from both sides of the equation, then the two sides remain equal.
Yes, the point is that if two terms (or sides of the equation) are equal, then they remain equal as long as you add or subtract the same amount, to or from both of them. It's very logical.
Energy and electrical charge are two quantities that are always conserved in nuclear decay equation.
Always yes
A negative number subtracted by a positive number will always end up negative.
An equation is called an equation because the root of the word 'equation' is the verb 'to equate'.That is, an equation says that two quantities are equal. This is the vital piece of information that a mathematician learns by inspecting an equation.Combining several pieces of such information like clues to a puzzle let mathematicians and engineers solve systems of equations for the variables involved, though this isn't always possible unless you have at least one equation for each variable.Algebraic methods all derive from what can be done to two equal quantities while keeping them equal, and algebraic substitution derives from the fact that the quantity substituted is equal to the expression replaced.
In math, an equation that is always true is called an identity.
Identity equation
Seems to me like if it's not always true, then it's no equation.