How do I solve for 4 ?

R-4+6r=3+8r

Step by step please !

r = -7

Step-by-step explanation:

r-4+6r = 3+8r

Combine like terms.

7r-4 = 3+8r

Separate the terms with the like terms together.

-4-3 = 8r-7r

Simplify.

r = -7

10 cm

step-by-step explanation:

if the polygon is a rectangle, then the perimeter is x+x+y+y. using the values that you gave, the perimeter is 3+3+2+2=10cm.

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