How do you solve $0.2 (2 x + \frac{1}{2}) = 510.5 + (- 2) 1$ $0.2( 2x + \frac { 1} { 2} ) = 510.5+ ( - 2) 1$ ?

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Answer 1 · 2018-07-26T08:12:41

$x = 1271$ $x=1271$

$0.2 (2 x + \frac{1}{2}) = 510.5 + (- 2) 1$ $0.2(2x+1/2)=510.5+(-2)1$

Expand the brackets
$0.4 x + 0.1 = 510.5 - 2$ $0.4x+0.1=510.5-2$

Make $0.4 x$ $0.4x$ your subject
$0.4 x = 510.5 - 2 - 0.1$ $0.4x=510.5-2-0.1$

Simplify
$0.4 x = 508.4$ $0.4x=508.4$

Divide both sides by $0.4$ $0.4$
$x = 1271$ $x=1271$

How do you solve 0.2(2x+12)=510.5+(−2)10.2( 2x + \frac { 1} { 2} ) = 510.5+ ( - 2) 1?