GB-07-02-001 · Equations with brackets

Solve $14(x-20)=-350$ .

Solving Equations: Linear with Brackets Booklet p. 2 & p. 10

Method

1) Expand bracket using grid (or divide both sides by outside factor)

2) Kill, kill to isolate x

Worked Example (GB-07-02-001)

1) Expand bracket with 1×2 grid (Booklet p. 2):

×	$x$	$-20$
$14$	$14x$	$-280$

14x - 280 = -350

← Kill

-280

+280

+280

\frac{14x}{14} = \frac{-70}{14}

← Kill

\times 14

x=-5