Question

Solve: The quantity 3 x minus 15 divided by 2 = 4x (5 points)

−15

6

−3

11

Answer 1

`Solution, solve\:for\:x,\:(3x-15)/(2)=4x\quad :\quad x=-3`

`Steps:`

`\mathrm{Multiply\:both\:sides\:by\:}2, (3x-15)/(2)\cdot \:2=4x\cdot \:2`

`Refine, 3x-15=8x`

`\mathrm{Add\:}15\mathrm{\:to\:both\:sides}, 3x-15+15=8x+15`

`\mathrm{Simplify}, 3x=8x+15`

`\mathrm{Subtract\:}8x\mathrm{\:from\:both\:sides}, 3x-8x=8x+15-8x`

`\mathrm{Simplify}, -5x=15`

`\mathrm{Divide\:both\:sides\:by\:}-5, (-5x)/(-5)=(15)/(-5)`

`\mathrm{Simplify}, x=-3`

The correct answer is C. -3

Hope this helps!!!