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x=4

Restate the question: Solve for x: 5x-1 = x + 15

5x-1+1 = x+15+1 {Add 1 to both sides

5x = x+16

5x-x = x-x+16 {Subtract x from both sides

4x = 16

4x/4 = 16/4 {divide both sides by 4

x = 4

Check:

5(4)-1 = 20-1 = 19

4+15 = 19 -> OK

5x -1 = x + 15

first group all the like terms that is number with numbers and unknown variables with unknown variables.. NB that when and numbers or variables are carried over an equal sign the sign changes oppositely

therefore

5x - x = 15 + 1

4X = 16

MAKE X THE SUBJECT BY DIVIDING BOTH SIDES BY 4 WE HAVE

X= 4

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Q: What is 5x -1 equals x plus 15?
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