The length of three sides of a triangle are (x+1)cm 2xcm and 3x+1)cm its perimeter is 30cm. find the value of x and the length of wach sides of triangle

Start by writing a formula-
30=(x+1)+(2x)+(3x+1)
Combine like terms-
30=6x+2
Subtract 2 from both sides
28=6x
Divide both sides by 6
4.666≈x
You can then check this by plugging in 4.666 to your formula and adding to see if it works. Remember, x is roughly equal to 4.666.