An equation is shown below: 6(2x - 11) + 15 = 21

Write the steps you will use to solve the equation and explain each step.

x=6

Step-by-step explanation:

Let's solve your equation step-by-step.

6(2x−11)+15=21

Step 1: Simplify both sides of the equation.

6(2x−11)+15=21

(6)(2x)+(6)(−11)+15=21(Distribute)

12x+−66+15=21

(12x)+(−66+15)=21(Combine Like Terms)

12x+−51=21

12x−51=21

Step 2: Add 51 to both sides.

12x−51+51=21+51

12x=72

Step 3: Divide both sides by 12.

where are the graphs?

step-by-step explanation:

let x and 400 - x be the two numbers.  

==> 0.80x + 0.85(400 - x) = 400 - 68 from the statement of the problem.  

< ==> 0.80x + 0.85(400 - x) = 400 - 68  

==> 340 - 0.05x = 332  

< ==> -0.05x = -8 ==> x = 160, the first number ==> 400 - x = 240, the second number.