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42 votes
42 votes
Find the value for x and ST if T is between S and U: TU = 5x - 3, SU = 45, ST = 7x.

User FLP
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1 Answer

17 votes
17 votes

SU = ST+ TU

45 = 7x+5x-3

Solve for x:

Combine like terms:

45 = 12x-3

Add 3 to both sides of the equation:

45+3 =12x-3+3

48 = 12x

Divide both sides by 12

48/12 =12x/12

4=x

User Ccsakuweb
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