Answer:
RXS=48
Explanation:
According to the figure,
RXQ+QXS=RXS
or,8x-1+3x+5=5x+28
or,8x+3x-5x=28+1-5
or,6x=24
or, x=24/6
or,x=4
Then,
RXS=5x+28
=5×4+28
=20+28
=48
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