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if RS=8y+4,

,,ST=4y+8 and
RT=15y-9 find the value of y

3 answers

If RS + ST= RT then
8y+4+4y+8=15y-9
solve for y
Y=7
RS + ST = RT
(8y + 4) + (4y + 8) = 15y - 9
12y + 12 = 15y - 9
21 = 3y
y = 7
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