Question

8b+55=167,7y+9-5y=13,(720+e)*501=365730,(k+2958):87=134,8e-14=6e+4,(c-3)*12=20-4*(c+2) решите уравнения пожалуйста

Answer 1

1)8b+55=167 
8b=167-55
8b=112
b=122
2)7y+9-5y=13
7y+4=13
7y=13-4
7y=9
y=9/7

Answer 2

Equation 1: 8b + 55 = 167

To solve this equation, we need to isolate the variable 'b' on one side of the equation. Here's the step-by-step solution:

1. Subtract 55 from both sides of the equation: 8b + 55 - 55 = 167 - 55 8b = 112

2. Divide both sides of the equation by 8: 8b/8 = 112/8 b = 14

Therefore, the solution to the equation 8b + 55 = 167 is b = 14.

Equation 2: 7y + 9 - 5y = 13

To solve this equation, we need to combine like terms and isolate the variable 'y' on one side of the equation. Here's the step-by-step solution:

1. Combine like terms on the left side of the equation: 7y - 5y + 9 = 13 2y + 9 = 13

2. Subtract 9 from both sides of the equation: 2y + 9 - 9 = 13 - 9 2y = 4

3. Divide both sides of the equation by 2: 2y/2 = 4/2 y = 2

Therefore, the solution to the equation 7y + 9 - 5y = 13 is y = 2.

Equation 3: (720 + e) * 501 = 365730

To solve this equation, we need to isolate the variable 'e' on one side of the equation. Here's the step-by-step solution:

1. Divide both sides of the equation by 501: (720 + e) * 501 / 501 = 365730 / 501 720 + e = 730

2. Subtract 720 from both sides of the equation: 720 + e - 720 = 730 - 720 e = 10

Therefore, the solution to the equation (720 + e) * 501 =