Question

Решить уравнения 50+х=70 50-а=30

Answer 1

50+х=70

х=70-50

х=20

50-а=30

а=50-30

а=20

Answer 2

Ответ:

х = 20; а = 20

Пошаговое объяснение:

50+х=70                  50-а=30

х = 70-50                 а = 50-30

х = 20                      а = 20

Answer 3

I can help you solve equations. Here are the steps to solve the equations 50x = 70 and 50 - a = 30.

To solve for x, we need to isolate x on one side of the equation and move the other terms to the other side. We can do this by dividing both sides by 50. This gives us:

$$\frac{50x}{50} = \frac{70}{50}$$

Simplifying, we get:

$$x = \frac{7}{5}$$

This is the solution for x.

To solve for a, we need to isolate a on one side of the equation and move the other terms to the other side. We can do this by adding a to both sides and subtracting 50 from both sides. This gives us:

$$a + 50 - 50 = 30 + a - 50$$

Simplifying, we get:

$$a = -20$$

This is the solution for a.

You can also use online tools to check your answers or solve other equations. Here are some links that you might find useful:

- [Equation Solver - Mathway](https://www.mathway.com/Calculator/equation-solver) - [Solve | Microsoft Math Solver](https://mathsolver.microsoft.com/en/solver) - [Microsoft Math Solver - Math Problem Solver & Calculator](https://mathsolver.microsoft.com/en)