a + 12=22
now you subtract by 12 because that's the number nearest a variable then u get a=10.
YES!! You use algebra in your everyday lives. Adding is considered an equation. An equation is a problem with an equal sign. An expression has no answer (an equal sign).
Adding.
A subtraction problem can always be written as an addition problem by using the concept of "adding the opposite." For example, the subtraction equation (a - b) can be transformed into the addition equation (a + (-b)). This representation helps to maintain the same numerical relationship while expressing it in a different mathematical form.
An answer to an adding problem is called a "sum"
two algebraic steps (not counting simplification steps) must be used to solve the problem. 1st step is adding or subtracting some quantity from both sides of the equation. 2nd step is multiplying or dividing by a number to solve.
The answer to an addition problem is called the sum.
How does adding partial products help solve a multiplication problem
True
NO!
No
adding heat using a catalyser
You're allowed to do that, yes. Whether or not it "solves" any particular equation depends on the equation itself.