Question

(1908+r):25=80 Уравнение 4-ого класса помогите

Answer 1

(1908+r):25=80
1908+r=25*80
1908+r=2000
r=2000-1908
r=92

Answer 2

Solving the Equation

To solve the equation (1908 + r) : 25 = 80, we can follow these steps:

1. Subtract 1908 from both sides of the equation to isolate the variable r. 2. Then, multiply both sides by 25 to solve for r.

Let's solve it step by step:

1. Subtract 1908 from both sides: - (1908 + r) : 25 - 1908 = 80 - 1908 - (1908 + r) : 25 - 1908 = -1828

2. Multiply both sides by 25: - 25 * ((1908 + r) : 25 - 1908) = 25 * (-1828) - 1908 + r - 1908 = -45700 - r = -45700

So, the solution to the equation (1908 + r) : 25 = 80 is r = -45700.