yep
State the problem
If you don't know something in a math equation you can replace it with a variable and then solve it algebraically.
Mental math is basically math in your head so for example 40x2=80 so I did that in my head
You can't. Math is not an algebraic expression. Simplifying an equation, however, can take multiple forms. Sometimes simplify simply means to solve an equation. Other times, it can mean to bring an equation into a standard form, such as with line equations, or quadratic equations.
variable equation solve it test it
yep
you can not solve a science equation with out math
"Solve an equation" means "find out, for which values of the variable or variables is the equation true".
State the problem
If you don't know something in a math equation you can replace it with a variable and then solve it algebraically.
whatever the equation is write the equation in words then solve each step in a sentence.
Use a variable to represent the unknown. 'Translate' the words to math symbols and write an equation to solve. Solve the equation. Check.
use one step equation.
Parentheses is when you are doing an equation, and you solve the problem.
I think you are referring to checking a math equation. After you solve an equation you should go back and check your work to make sure you got the right answer. You can do this by plugging your answer back into the equation
When I couldn't solve the final equation on the math test, I had to leave it blank.