7a - 4 + 2a= 3a - 2
I tired it and couldn't come out with a answer that fit when I checked it
7a - 4 + 2a = 3a - 2
9a - 4 = 3a - 2
6a = 2
a = ?
add like terms on same sides
7a - 4 + 2a --> 7a+2a = 9a
equals
9a - 4 = 3a - 2
combine like terms from opposite sides by adding or subtracting on both sides
9a - 4 + 4 = 3a - 2 + 4
equals
9a = 3a + 2
9a - 3a = 3a - 3a + 2
equals
6a = 2
then divide out the last number to get "a" by itself
6a/6 = 2/6
a = 2/6 --> 1/3
To solve the equation 7a - 4 + 2a = 3a - 2, let's start by simplifying both sides of the equation:
Combining like terms on the left side, we have: 7a + 2a - 4 = 9a - 4.
Now, the equation becomes: 9a - 4 = 3a - 2.
To isolate the variable 'a', we need to get all 'a' terms on one side and the constant terms on the other side. We can do this by subtracting 3a from both sides:
9a - 3a - 4 = 3a - 3a - 2.
Simplifying further, we get: 6a - 4 = -2.
Now, to isolate 'a', we can add 4 to both sides of the equation:
6a - 4 + 4 = -2 + 4.
This simplifies to: 6a = 2.
Finally, to solve for 'a', divide both sides of the equation by 6:
6a / 6 = 2 / 6.
The result is: a = 1/3.
So, the solution to the equation 7a - 4 + 2a = 3a - 2 is a = 1/3.