Answered

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solve for variable
RS=3x+1
ST=1/2x+3
RT=18
please explain how you solve!

Sagot :

The variable x is 4.  

How to find variables?

Variables are numbers represented with a letter in an equation.

Therefore, the line RT is a full line segment.

Let's find the variables x

Hence,

RS + ST = RT

Therefore,

3x + 1 + 1 / 2 x + 3 = 18

combine like terms

3x + 1 / 2 x + 1 + 3 = 18

3.5x + 4 = 18

subtract 4 from both sides

3.5x + 4 - 4 = 18 - 4

3.5x  = 14

divide both sides by 3.5

3.5x / 3.5 = 14 / 3.5

x = 4

Therefore, the variable x is 4.  

learn more on variables here:https://brainly.com/question/28291750

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