(3/4x - 1) + (3/4x - 2)
First, we can combine like terms:
(3/4x - 1) + (3/4x - 2) = 3/4x + 3/4x - 1 - 2
Next, simplify the expression:
= 6/4x - 3
= (6x - 3)/4.
So, the simplified expression is (6x - 3)/4.
7x + 3(x - 2) - 4x + 8
First, we can simplify the expression inside the parentheses:
3(x - 2) = 3x - 6.
Now, we can combine like terms:
7x + 3x - 6 - 4x + 8 = (7x + 3x - 4x) - 6 + 8
= 6x - 6 + 8
= 6x + 2.
So, the simplified expression is 6x + 2.
(3x - 8) + (2x + 5) - (4x - 8)
First, let's simplify each set of parentheses:
(3x - 8) + (2x + 5) - (4x - 8) = 3x - 8 + 2x + 5 - 4x + 8
Next, we can combine like terms:
= (3x + 2x - 4x) + (-8 + 5 + 8)
= x + 5
So, the simplified expression is x + 5.
2.2 - 0.5 (0.6x - 1.8)
Let's simplify the expression step by step:
2.2 - 0.5 (0.6x - 1.8)
First, distribute the -0.5 to each term inside the parentheses:
2.2 - 0.5 * 0.6x + 0.5 * 1.8
Simplify the products:
2.2 - 0.3x + 0.9
Combine like terms:
2.2 + 0.9 - 0.3x
Simplify further:
3.1 - 0.3x
So, the simplified expression is 3.1 - 0.3x.
- 1/2 (-6x + 3)
Let's simplify the expression step by step:
-1/2 (-6x + 3)
First, distribute the -1/2 to each term inside the parentheses:
-1/2 * -6x + -1/2 * 3
Multiply the coefficients:
3x - 3/2
So, the simplified expression is 3x - 3/2.