Question

I know the answer is x = 27 but can't figure out how to get there. The problem is 3x-5+(x+1)/2=/90

Answer 1

what's over the 90 on the right side?

Answer 2

nothing

Answer 3

Is the equation \[\large 3x-5+\frac{x+1}{2}=90\]

Answer 4

@jim - yes

Answer 5

\[\large 3x-5+\frac{x+1}{2}=90\]


\[\large 6x-10+x+1=180\]


\[\large 7x-9=180\]


\[\large 7x=180+9\]


\[\large 7x=189\]


\[\large x=\frac{189}{7}\]


\[\large x=27\]

Answer 6

In the second step, I multiplied EVERY term by the LCD 2 to clear out the fraction.

Answer 7

Ohhhh.... Thanks so much!