Question

Write and solve the equation described. ? Twenty-one less than six times a number is 15 more than three times the number.

Answer 1

Write the equation
`6x-21=3x+15`

Add `21` to both sides
`6x=3x+36`

Subtract `3x` from both sides
`3x=36`

Divide both sides by `3`
`x=12`