Answer:
x=tr/s
Explanation:
x/r-s=t
x-s=t×r
x-s/s=tr/s
x/r - s = t
Add s to both sides.
x/r - s + s = s + t
x/r + 0 = s + t
x/r = s + t
Multiply both sides by r.
r(x/r) = r(s + t)
x = r(s + t)
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