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
Solution. A solution of an equation is a number that satisfy the equation. This means that if you replace this number on the equation and check it, the equation will be true. When you solve an equation you can find some roots, but not all of them satisfy the equation. Thus always check your answers after resolving your equation, and eliminate as solution the answers that don't make the equation true or undefined.
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.
To find the number that, when subtracted from another number, equals 46, you can set up the equation: ( x - y = 46 ), where ( x ) is the number you are subtracting from, and ( y ) is the number being subtracted. For example, if ( y = 0 ), then ( x ) would be 46. The specific values of ( x ) and ( y ) can vary, but the difference will always be 46.
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.