How do you solve 2+ 2g = 82+2g=8?

3 Answers
FRANK Z.
May 24, 2018

g=3g=3

Explanation:

2+2g-2=8-22+2g−2=8−2
2g=62g=6
2g/2=6/22g2=62
g=3g=3

Alan P.
May 24, 2018

Subtract 2 from both sides
then divide both sides by 2
to get g=3g=3

Explanation:

2+2g=82+2g=8

2+2gcolor(red)(-2)=8color(red)(-2)2+2g−2=8−2
rArr 2g=6⇒2g=6

(2g)color(red)(div2)=6color(red)(div2)(2g)÷2=6÷2
rArr g=3⇒g=3

Jim G.
May 24, 2018

g=3g=3

Explanation:

"isolate "2g" on the left side of the equation by subtracting"isolate 2g on the left side of the equation by subtracting
"2 from both sides"2 from both sides

cancel(2)cancel(-2)+2g=8-2

2g=6

"divide both sides by 2"

(cancel(2) g)/cancel(2)=6/2rArrg=3

color(blue)"As a check"

Substitute this value into the left side of the equation and if equal to the right side then it is the solution.

2+(2xx3)=2+6=8=" right side"

g=3" is the solution"

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