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Mathematics 8 Online
OpenStudy (mathsucks321):

http://prntscr.com/d8lh7l

OpenStudy (mathsucks321):

@ILUVSOCCER

OpenStudy (amorfide):

|dw:1479415125334:dw| straight lines always add up to 180 degrees

OpenStudy (iluvsoccer):

I think you add the equations... :/ But @amorfide is good at this. :)

OpenStudy (amorfide):

|dw:1479415146921:dw|

OpenStudy (amorfide):

so if you have

OpenStudy (amorfide):

|dw:1479415159191:dw| then adding them up will equal 180

OpenStudy (amorfide):

but you can also notice that if a straight line angle adds up to 180, splitting it in half will become 90 degrees on both sides

OpenStudy (amorfide):

anyways in your case you have 2x+31+2x+29=180 work out x

OpenStudy (mathsucks321):

OKay thanks!

OpenStudy (mathsucks321):

x=30

OpenStudy (amorfide):

well done

OpenStudy (mathsucks321):

ty

OpenStudy (amorfide):

in your other question, opposite angles are equal to each other so -26+4x=3x+2

OpenStudy (amorfide):

solve for x

OpenStudy (mathsucks321):

I got 28

OpenStudy (mathsucks321):

thanks

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