Best Answer

Mathematically, it does not matter. But it can be harder and you do need to know exactly what you are doing.

For example, if you need to solve 5x + 3 = 23

the conventional 2-step method is as follows:

Step 1: 5x + 3 - 3 = 23 - 3

which gives 5x = 20

Step 2: 5x/5 = 20/5

so that x = 4.

But you could also have done

Step 1: 5x/5 + 3/5 = 23/5

which gives x + 3/5 = 23/5

Step 2: x + 3/5 - 3/5 = 23/5 - 3/5

ans so x = 20/5 = 4 as before.

Q: Why does order matter in solving two step equations?

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The order of operations relate to solving multi-step equations because you are following the order of operations just in a backwards way.

5-7m+9m=11

In a two step equation, you need to do another step.

You have to follow the order of operations which goes as follows, parentheses, then exponents, then multiplication, then division, then addition, and finally subtraction

Just keep doing the same thing to both sides of the equation at every step.

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The order of operations relate to solving multi-step equations because you are following the order of operations just in a backwards way.

Equations can be tricky, and solving two step equations is an important step beyond solving equations in one step. Solving two-step equations will help introduce students to solving equations in multiple steps, a skill necessary in Algebra I and II. To solve these types of equations, we use additive and multiplicative inverses to isolate and solve for the variable. Solving Two Step Equations Involving Fractions This video explains how to solve two step equations involving fractions.

The first step is to show the equations which have not been shown.

5-7m+9m=11

In a two step equation, you need to do another step.

The first step is to solve one of the equations for one of the variables. This is then substituted into the other equation or equations.

Isolating a variable in one of the equations.

In general, a system of non-linear equations cannot be solved by substitutions.

The first step is usually to solve one of the equations for one of the variables.Once you have done this, you can replace the right side of this equation for the variable, in one of the other equations.

Presumably you'll arrive at the wrong solution.

You have to follow the order of operations which goes as follows, parentheses, then exponents, then multiplication, then division, then addition, and finally subtraction

Yes, but only if you know exactly what you are doing.