Question

А) 5x + 10 =20 б) 3+0,5х=6 в)2х-7=17 г)3-1\3х=2

Answer 1

А)5x+10=20
5x=10
X=10:5
X=2

Answer 2

To solve each of these equations, we'll find the value of 'x' that makes the equation true. Let's solve them one by one:

А) 5x + 10 = 20

Step 1: Subtract 10 from both sides to isolate the term with 'x'. 5x + 10 - 10 = 20 - 10 5x = 10

Step 2: Divide both sides by 5 to solve for 'x'. x = 10 / 5 x = 2

So, the solution for equation (А) is x = 2.

б) 3 + 0.5x = 6

Step 1: Subtract 3 from both sides to isolate the term with 'x'. 3 + 0.5x - 3 = 6 - 3 0.5x = 3

Step 2: Divide both sides by 0.5 to solve for 'x'. x = 3 / 0.5 x = 6

So, the solution for equation (б) is x = 6.

в) 2x - 7 = 17

Step 1: Add 7 to both sides to isolate the term with 'x'. 2x - 7 + 7 = 17 + 7 2x = 24

Step 2: Divide both sides by 2 to solve for 'x'. x = 24 / 2 x = 12

So, the solution for equation (в) is x = 12.

г) 3 - (1/3)x = 2

Step 1: Subtract 3 from both sides to isolate the term with 'x'. 3 - (1/3)x - 3 = 2 - 3 -(1/3)x = -1

Step 2: Multiply both sides by -3 to solve for 'x'. x = (-1) * (-3) x = 3

So, the solution for equation (г) is x = 3.

In summary: A) x = 2 б) x = 6 в) x = 12 г) x = 3