Question

1)70*x-50=580       2     4     92)X-15= 15+ 153)1500:(Y-189)=25        9     4   114)Y+15= 15+ 155)460-C:105=180    15        9  66)  15-C= 19-19

Answer 1

1) 70x=580+50; x=630/70; x=9. 2) x-15=30; x=45. 4)y+15=30; y=45. 6) 15-c=0; c=15

Answer 2

1. To solve for x in the equation 70*x-50=580, we need to isolate x on one side of the equation.

First, we add 50 to both sides:

70*x-50+50=580+50

Simplifying:

70*x=630

Finally, we divide both sides by 70 to obtain the solution:

x=9

Therefore, the solution is x=9.

2. To solve for x in the equation x-15=15+15, we need to isolate x on one side of the equation.

First, we add 15 to both sides:

x-15+15=15+15+15

Simplifying:

x=45

Therefore, the solution is x=45.

3. To solve for y in the equation 1500/(y-189)=25, we need to isolate y on one side of the equation.

First, we multiply both sides by (y-189):

1500 = 25*(y-189)

Next, we simplify:

1500 = 25y - 4725

Adding 4725 to both sides:

6225 = 25y

Finally, we divide both sides by 25 to obtain the solution:

y = 249

Therefore, the solution is y=249.

4. To solve for y in the equation y+15=15+15, we need to isolate y on one side of the equation.

First, we subtract 15 from both sides:

y+15-15=15+15-15

Simplifying:

y=15

Therefore, the solution is y=15.

5. To solve for C in the equation 460-C/105=180, we need to isolate C on one side of the equation.

First, we multiply both sides by 105:

460-C = 105*180

Next, we simplify:

460-C = 18900

Subtracting 460 from both sides:

-C = 18440

Finally, we multiply both sides by -1 to obtain the solution:

C = -18440

Therefore, the solution is C=-18440.

6. To solve for C in the equation 15-C=19-19, we need to isolate C on one side of the equation.

Simplifying:

15-C=0

Adding C to both sides:

15= C

Therefore, the solution is C=15.