Question

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

Answer 1

Step-by-step 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;

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

$30 = 17 + 14 - 1$

$30 = 31 - 1$

$30 = 30\checkmark$