3a+8=15-(9a-9)
3a+8=15-(9a-9)
3a+8=15-1(9a-9)
3a+8=15-9a+9
+3a +3a
12a+8=15
-8 -8
12a=7
/12 /12
a=.5833 repeating
3a+8=15-(9a-9)
3a+8=15-9a+9
3a+8=24-9a
12a+8=24
12a=16
a=16/12
a=1 1/3
To solve the equation 3a + 8 = 15 - (9a - 9), we can follow these steps:
Step 1: Simplify the equation by distributing the negative sign in front of the parentheses:
3a + 8 = 15 - 9a + 9
Step 2: Combine like terms by adding or subtracting the same variables on both sides. In this case, we have "a" on both sides:
3a + 9a = 15 + 9 - 8
Step 3: Simplify each side of the equation:
12a = 16
Step 4: Isolate the variable "a" to one side by dividing both sides of the equation by the coefficient of "a":
12a / 12 = 16 / 12
a = 4/3
Therefore, the solution to the equation 3a + 8 = 15 - (9a - 9) is a = 4/3.