the sum of a number and 16 is equal tu 45
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Expressions are just expressions. Art is an expression and no one can "solve" art. You need problems to solve. In algebra, you'll most likely be looking for equations to solve. Generally you are looking for a simple way to express a variable or to equate the variable to a number. This can be done using what are called "algebraic manipulations". Usually this involves just adding, subtracting, multiplying or dividing each side of an equation (an expression need not have "sides"), however there are many, many different operations than these. wow does that suck....the answer is Elmo
When you find an answer or a solution, it is called solving a problem. This can be done in a number of ways, and can refer to simple equations, or story problems in reality.
math statements that contain variables are expressions or equations that have a letter or symbol that represents a number or value. for example, if (2+N=7), N is the variable and N=5 hope this helps
If n is the number 5n is 5 times the number.
Simultaneous equation is nothing: it cannot exist.A system of simultaneous equations is a set of 2 or more equations with a number of variables. A solution to the system is a set of values for the variables such that when the variables are replaced by these values, each one of the equations is true.The equations may be linear or of any mathematical form. There may by none, one or more - including infinitely many - solutions to a system of simultaneous equations.