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One-step Linear Equations

One-Step Linear Equations

Solving linear equations → get variable to one side, by itself → use inverse operation to undo what was done to variable → must do same operation on each side of equation

$X+6=-3$

$X+6-6=-3-6$

$X=-3-6$

$X=-9$

$X-3=5$

$X-3+3=5+3$

$X=5+3$

$X=8$

$\frac{X}{10}=2$

$(\frac{10}{1}) \frac{X}{10}=2(\frac{10}{1})$

$X=2(10)$

$X=20$

$143=11X$

$\frac{143}{11} = \frac{11X}{11}$

$\frac{143}{11}=X$

$13=X$