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Mathematics 8 Online
OpenStudy (anonymous):

Help please. Given the square below, solve for x. Choices: x = 6 x = -2 x = -6 x = 2

OpenStudy (anonymous):

ganeshie8 (ganeshie8):

it is a square ! so sides are equal

ganeshie8 (ganeshie8):

AB = AD

OpenStudy (anonymous):

yes

ganeshie8 (ganeshie8):

set up an equation

ganeshie8 (ganeshie8):

4x - 11 = x + 7

ganeshie8 (ganeshie8):

subtract x both sides

ganeshie8 (ganeshie8):

3x - 11 = 7

ganeshie8 (ganeshie8):

add 11 both sides

ganeshie8 (ganeshie8):

3x = 18

ganeshie8 (ganeshie8):

divide 3 both sides

ganeshie8 (ganeshie8):

x = ?

OpenStudy (anonymous):

I thought is was the first answer x=6

ganeshie8 (ganeshie8):

when you divide 3 both sides :- 3x 18 -- = -- 3 3 x = 6

ganeshie8 (ganeshie8):

you're right !

OpenStudy (anonymous):

yeah. thank you.

ganeshie8 (ganeshie8):

np.. yw !

OpenStudy (anonymous):

do you have time to help me with a graph problem?

ganeshie8 (ganeshie8):

sure

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