7a-8=15a+8
7a-8 =15a + 8
add 8 to both sides
7a = 15a + 16
subtract 15a from both sides
-8a = 16
divide by -8
a= -2
7a-8=15a+8
7a - 15a = 16
-8a = 16
a = -2
To solve the equation 7a - 8 = 15a + 8, we need to isolate the variable 'a' on one side of the equation.
Let's begin by simplifying the equation by combining like terms.
We can group the terms with 'a' on one side by subtracting 7a from both sides of the equation:
7a - 7a - 8 = 15a - 7a + 8
This simplifies to:
-8 = 8a + 8
Next, let's isolate the term with 'a' by subtracting 8 from both sides:
-8 - 8 = 8a + 8 - 8
This simplifies to:
-16 = 8a
Now, to solve for 'a', we divide both sides of the equation by 8:
-16/8 = 8a/8
This simplifies to:
-2 = a
So, the solution to the equation 7a - 8 = 15a + 8 is a = -2.