Question

9.5х-(3.2х+1.8х)+3.75=6.9 помогите

Answer 1

9,5x-3,2x-1,8x+3,75-6,9=0
4,5x-3,15=0
4,5x=3,15
X=0,7

Answer 2

9.5х-(3.2х+1.8х)+3.75=6.9
9.5х-3.2х-1.8х+3.75=6.9
4.5х+3.75=6.9
4.5х=6.9-3.75
4.5х=3.15
х=3.15:4.5
х=0.7

Answer 3

Solving the Equation

To solve the given equation, we'll follow the order of operations (PEMDAS: Parentheses, Exponents, Multiplication and Division, Addition and Subtraction) to simplify the expression step by step.

First, let's simplify the expression 9.5x - (3.2x + 1.8x) + 3.75 = 6.9.

1. Combine like terms inside the parentheses: - 9.5x - (3.2x + 1.8x) + 3.75 = 6.9 - 9.5x - 5x + 3.75 = 6.9

2. Combine like terms: - (9.5x - 5x) + 3.75 = 6.9 - 4.5x + 3.75 = 6.9

3. Move the constant term to the other side of the equation: - 4.5x = 6.9 - 3.75 - 4.5x = 3.15

4. Solve for x: - x = 3.15 / 4.5 - x = 0.7

Final Answer

The solution to the equation 9.5x - (3.2x + 1.8x) + 3.75 = 6.9 is x = 0.7.