63-x=2x+3
if you answer that with step by step, ill give a brain thingy!!

X=20

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

63−x=2x+3

63+−x=2x+3

−x+63=2x+3

Step 2: Subtract 2x from both sides.

−x+63−2x=2x+3−2x

−3x+63=3

Step 3: Subtract 63 from both sides.

−3x+63−63=3−63

−3x=−60

Step 4: Divide both sides by -3.

-3x/-3= -60/-3

step-by-step explanation:

given perimeter: 28cm

length: 9cm

atp,

2(l+w)=p of the reactangle

2(9+x)=28

18+2x=28

2x=28-18

x=10/2

x=5

therefore width is 5 cm

step-by-step explanation: