Question

Find the value of 7w-3 given that -2w+4=6

Answer 1

Answer: -10

Explanation:

We will first solve the equation:

`\sf{-2w+4=6}`

Subtract 4 from both sides.

`\sf{-2w=6-4}`

`\sf{-2w=2}`

Divide both sides by -2:

`\sf{w=-1}`

Now, plug this into the expression 7w - 3:

`\sf{7(-1)-3=-7-3=-10}`

Answer 2

`- 2w + 4 = 6`

`\Leftrightarrow \: - 2w = 6 - 4 = 2`

`\Leftrightarrow w= - (2)/(2) = - 1`

`so \: 7w - 3 = 7 * ( - 1) - 3 = - 10`