How To Solve Linear Equations
EASY RULES TO FOLLOW
IN SOLVING LINEAR EQUATIONS:
RULE #1: Remember that the object is to get the ‘x’ by itself, on one side of the equation where the equal (=) sign separates the other numbers, TOTALLY ALONE! Without any number or negative sign if front of it!
Ex. -x = 2 WRONG! x = -2 CORRECT!
RULE#2: Whatever math function ( =, -, X, / ) is being done on one side of the equal, to get it on the other side you MUST do the opposite.
Ex. =
add -> subtract
+ -
mulitlpy -> divide Vise Versa
X /
RULE#3: Wherever there are parenthesis{ ( ) } take the number in front of the parenthesis and multiply it with each number inside of the parenthesis.
Ex. 4(2x + 3) = 4 X 2x = 8x & 4 X 3 = 12
So the answer is 8x + 12
RULE#4: If there are more than on ‘x’ in the problem, combine them together!
Ex. 2x = -4x + 3 HOLD ON! REMEMBER RULE #1
2x = -4x +3 GET THE ‘x’ BY ITSELF!
+4x = +4x +3
6x = 3
6x/6 = 3/6
x = 3/6
x = 1/2
CORRECT!
NOW LETS PRACTICE, PRACTICE, PRACTICE!!