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Verified Answer :

dasetka

0.5s + 1 = 7 + 4.5s   Subtract 4.5s from both sides
  -4s + 1 = 7              Subtract 1 from both sides
       -4s = 6              Divide both sides by -4
          s = -\(\frac{6}{4}\)   Simplify
          s = -\(\frac{3}{2}\)

Htet

Simplifying
0.5s + 1 = 7 + 4.5s

Reorder the terms:
1 + 0.5s = 7 + 4.5s

Solving
1 + 0.5s = 7 + 4.5s

Solving for variable 's'.

Move all terms containing s to the left, all other terms to the right.

Add '-4.5s' to each side of the equation.
1 + 0.5s + -4.5s = 7 + 4.5s + -4.5s

Combine like terms: 0.5s + -4.5s = -4s
1 + -4s = 7 + 4.5s + -4.5s

Combine like terms: 4.5s + -4.5s = 0.0
1 + -4s = 7 + 0.0
1 + -4s = 7

Add '-1' to each side of the equation.
1 + -1 + -4s = 7 + -1

Combine like terms: 1 + -1 = 0
0 + -4s = 7 + -1
-4s = 7 + -1

Combine like terms: 7 + -1 = 6
-4s = 6

Divide each side by '-4'.
s = -1.5

Simplifying
s = -1.5

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