How to solve linear equation
2 answers:
Answer:
1.Step 1: Simplify each side, if needed.
2.Step 2: Use Add./Sub. Properties to move the variable term to one side and all other terms to the other side.
3.Step 3: Use Mult./Div. ...
4.Step 4: Check your answer.
I find this is the quickest and easiest way to approach linear equations.
5.Example 6: Solve for the variable.
You can use elimination and substitution method
EXAMPLE :
Given :
2x + y = 5
3x - 5y = 1
2x + y = 5 (× -5)
3x - 5y = 1
__________
-10x - 5y = - 25
3x - 5y = 1
____________ _ (elimination)
-13x = - 26
x = - 26/-13
x = 2
Substitution x = 2 to 2x + y = 5 :
2x + y = 5
2(2) + y = 5
4 + y = 5
y = 5 - 4
y = 1
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