Question

(1/2+3)(0,2x-1)=0 pomogite

Answer 1

0.5×0.2-0.5+0.6x-3=0
-0.4+3+0.6x=0
0.6x=-2.6
x=26/6

Answer 2

(1/2+3)*(0,2x-1)=0
1/2 = 0,5
(0,5+3)*(0,2x-1)=0
3,5* (0,2x-1)=0
0,7х-3,5=0
0,7х=3,5
х=3,5:0,7
х=5

Answer 3

Davayte razob'em vyrazheniye step by step.

1. Provedem vychisleniye v skobkakh, ispol'zuya pravila prioriteta matematicheskikh operatsiy. V nachale vyrazheniye v skobkakh:

   (1/2 + 3)

   Vychislim summatsiyu:

   (1/2 + 3) = (0.5 + 3) = 3.5

2. Zatem vyrazheniye prevrashchaetsya v:

   3.5(0.2x - 1)

3. Provedem umnozheniye:

   3.5 * 0.2x - 3.5 * 1

   0.7x - 3.5

4. Poskol'ku my ravny 0, to:

   0.7x - 3.5 = 0

5. Chtoby nayti znacheniye x, peremechayem -3.5 na pravuyu storonu:

   0.7x = 3.5

6. Delim oba polyusa na 0.7:

   x = 3.5 / 0.7

   x = 5

Takim obrazom, resheniye etogo vyrazheniya yavlyayetsya x = 5.