Question

An equation is shown below:

Answer 1

Multiple 6 with numbers inside paranthesis:
12x - 66 + 15 = 21
add 66 fhen substrack 15 from both sides :
12x = 72 divide both sides with 12:
x = 6

Answer 2

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 12.12x/12 = 72/12

x=6

Therefore, the answer is 6