Identify the method that will be used to solve for x for each equation.

4x = 20

x – 11 = 9

5x + 6x = 22

5(x – 2) = 30

For this case we have:

Equation 1:

Dividing between 4 on both sides of the equation we have:

Equation 2:

Adding 11 to both sides of the equation we have:

Equation 3:

We add similar terms to the left side of the equation:

We divide between 11 on both sides of the equation:

Equation 4:

We apply distributive property of the left side of the equation we have:

Adding 10 to both sides of the equation:

Dividing between 5 on both sides of the equation:

the equation for this situation is y=122+45. to solve the equation you would add 45 and 122 to get a total of 167lbs. in conclusion, grace's weight eight weeks ago was 167lbs.  

it will cost dollar $540

the living room is 3 which means if we divide 325/3 then we get $108

therefore if 1part of the living room cost $108 and 3 costed $325

then total 5part of the room will cost 5*108 which gives $540