SOLUTION: show the equations or inequalities using variables. 3 times a number, increased by 7, is 19. find the number. thanks

Algebra ->  Expressions-with-variables -> SOLUTION: show the equations or inequalities using variables. 3 times a number, increased by 7, is 19. find the number. thanks      Log On


   

Question 117915: show the equations or inequalities using variables.
3 times a number, increased by 7, is 19. find the number.
thanks
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!


let number be x
3x+%2B+7+=+19......add -7 to the both sides
3x+%2B+7-7+=+19+-+7
3x++=+12......both sides divide by 3
3x%2F3+=+12%2F3
x+=+4