Question

5,6(4+х)-3 х , где х=1,8

Answer 1

$5,6(4+х)-3 \frac{1}{4}х = \\ = 5.6(4 + 1.8) - 3.25 \times 1.8 = \\ = 32.48 - 5.85 = 26.63$

Answer 2

To evaluate the expression 5,6(4+х)-3 х for х=1,8, we need to substitute the value of х into the expression and simplify:

5,6(4+х)-3 х

= 5,6(4+1,8)-3(1,8) (substitute х=1,8)

= 5,6(5,8) - 5,4

= 32,48 - 5,4

= 27,08

Therefore, the value of the expression 5,6(4+х)-3 х for х=1,8 is 27,08.