Question

Find the value of x if the perimeter is 30. X+3, x, 2x-1

Answer 1

Explanation:

Perimeter represents the sum of all of the sides adding.

The problem is stating that;

`30 = x + x + 3 + 2x - 1`

Combine like terms;

`30 = 4x + 2`

Subtract from both sides;

`28 = 4x`

Divide each side by 4;

`7= x`

Check;

`30 = 7 + 7 + 3 + 2(7) - 1`

`30 = 17 + 14 - 1`

`30 = 31 - 1`

`30 = 30\checkmark`