Question

A) 7x + 2,4 = 34,6 б) (y - 1,8) : 0,7

Answer 1

а) 7х+2,4=34,6

7х=34,6-2,4

7х=32,2

х=32,2:7

х=4,6

под б продолжение напиши

Answer 2

Вот ответ поставь класс и оцени будь так добр

Answer 3

To solve these equations for the variables, you'll need to isolate the variable (x or y) on one side of the equation. Let's solve each equation step by step:

A) $7x + 2.4 = 34.6$

1. Start by subtracting 2.4 from both sides to isolate the term with 'x' on one side of the equation:

$7x + 2.4 - 2.4 = 34.6 - 2.4$

This simplifies to:

$7x = 32.2$

2. Now, divide both sides by 7 to solve for 'x':

$\frac{7x}{7} = \frac{32.2}{7}$

$x = 4.6$

So, the solution to equation A is $x = 4.6$.

B) $(y - 1.8) / 0.7$

To solve for 'y' in equation B, you need to multiply both sides by 0.7 to isolate (y - 1.8):

$\frac{y - 1.8}{0.7} \cdot 0.7 = 0.7 \cdot 0.7$

This simplifies to:

$y - 1.8 = 0.49$

Now, add 1.8 to both sides to solve for 'y':

$y - 1.8 + 1.8 = 0.49 + 1.8$

$y = 2.29$

So, the solution to equation B is $y = 2.29$.