Fill in the reason that justifies the step by step. Given: QS = 42 Prove: x = 13 will medal and fan...

Question

anonymous · Answer

QS= 42
QR+RS= QS
(x+3) + 2x=42
3x+3=42
3x=39
x=13

jhonyy9 · Answer

QS = 42 

where is x or what is x ?

jhonyy9 · Answer

ok. i see it now and you are right sure

anonymous · Answer

yes, and sorry for the wait laptop messing up

jhonyy9 · Answer

ok. so can you prove it substituting the 13 in place of x inside this equation and you need to get 42

anonymous · Answer

yes, but i am also suppose to write the reasons... which i am not good at...

jhonyy9 · Answer

but i dont understand it what you need to reason it 

13+3 +2*13 = 42
16+26 = 42

42 =42 

in this way this is proven x=13 is the right answer sure

anonymous · Answer

to justify each step is what it says.....

jhonyy9 · Answer

QR = x+3
RS =2x 

are these given ?

jhonyy9 · Answer

and so x+3 + 2x =42 are given too ?

anonymous · Answer

yes i forgot to add that... sorry the two on top is in the timeline thingy.. but the equations is not