Question

Решение линейных уравнений. -6х=-18 60х=-2 6х+4=0 5х-3=4 10-2х=6х 2х-5=9+6х 7х+(2-3х)=19 2х-(4х+9)=-8 5-6(2х-3)=-8х 3(7х+8)-5х=12 *С полной росписью

Answer 1

1.
-6х=-18
х= -18:(-6)
х=3
2.
60х=-2
х= -2:60
х= -(1/30)
3.
6х+4=0
6х=-4
х=-4:6
х=-⅔
4.
5х-3=4
5х=7
х=7:5
х=1,4
6.
10-2х=6х
-2х-6х=-10
-8х= -10
х= -10:(-8)
х=1,25
7.
2х-5=9х-6
2х-9х=-6+5
-7х=-1
х=-1:(-7)
х=1/7
8.
7х+(2-3х)=19
7х+2-3х=19
4х=17
х=17:4
х=4,25
9.
2х-(4х+9)=-8
2х-4х-9=-8
-2х=-8+9
-2х=1
х=1:(-2)
х=-0,5
10.
5-6(2х-3)=-8х
5-12х+18=-8х
-12х+8х=-23
-4х=-23
х=-23:(-4)
х=5,75
11.
3(7х+8)-5х=12
21х+24-5х=12
16х=12-24
16х=-12
х=-12:16
х=-0,75

Answer 2

1. -6x = -18 To solve for x, we need to isolate x on one side of the equation. We can do this by dividing both sides by -6: -6x/-6 = -18/-6 x = 3 Therefore, x = 3 is the solution to the equation -6x = -18.

2. 60x = -2 Again, we need to isolate x on one side of the equation. This time, we can do this by dividing both sides by 60: 60x/60 = -2/60 x = -1/30 Therefore, x = -1/30 is the solution to the equation 60x = -2.

3. 6x + 4 = 0 To solve for x, we can subtract 4 from both sides of the equation: 6x + 4 - 4 = 0 - 4 6x = -4 Next, we can divide both sides by 6: 6x/6 = -4/6 x = -2/3 Therefore, x = -2/3 is the solution to the equation 6x + 4 = 0.

4. 5x - 3 = 4 To solve for x, we can add 3 to both sides of the equation: 5x - 3 + 3 = 4 + 3 5x = 7 Then, we can divide both sides by 5: 5x/5 = 7/5 x = 7/5 Therefore, x = 7/5 is the solution to the equation 5x - 3 = 4.

5. 10 - 2x = 6x To solve for x, we need to isolate x on one side of the equation. We can do this by adding 2x to both sides: 10 - 2x + 2x = 6x + 2x 10 = 8x Then, we can divide both sides by 8: 10/8 = x x = 5/4 Therefore, x = 5/4 is the solution to the equation 10 - 2x = 6x.

6. 2x - 5 = 9 + 6x To solve for x, we can subtract 2x from both sides: 2x - 2x - 5 = 9 + 6x - 2x -5 = 4x + 9 Then, we can subtract 9 from both sides: -5 - 9 = 4x -14 = 4x Finally, we can divide both sides by 4: -14/4 = x x = -7/2 Therefore, x = -7/2 is the solution to the equation 2x - 5 = 9 + 6x.

7. 7x + (2 - 3x) = 19 To solve for x, we can first simplify the left side of the equation by combining like terms: 7x + 2 - 3x = 19 4x + 2 = 19 Then, we can subtract 2 from both sides: 4x = 17 Finally, we can divide both sides by 4: 4x/4 = 17/4 x = 17/4 Therefore, x = 17/4 is the solution to the equation 7x + (2 - 3x) = 19.

8. 2x - (4x + 9) = -8 To solve for x,