Question

4) 253 - (х – 459) = 138; 5клос5) 502 - (217 - x) = 421;6) 871 - (х + 157) = 385.​

Answer 1

Ответ:

на скринах есть пошаговое решение)

Объяснение:

если что приложение фотомаш или фотомэш без разницы

Answer 2

It looks like you've provided three mathematical equations with variables. It seems you want to solve for the value of 'x' in each equation. Let's solve them one by one:

Equation 1: 253 - (x – 459) = 138 First, distribute the negative sign inside the parentheses: 253 - x + 459 = 138

Combine the constants on the left side: 712 - x = 138

Now, isolate 'x' by subtracting 712 from both sides: -x = 138 - 712 -x = -574

Multiply both sides by -1 to solve for 'x': x = 574

So, the solution for Equation 1 is x = 574.

Equation 2: 502 - (217 - x) = 421 First, simplify the expression inside the parentheses: 502 - 217 + x = 421

Combine the constants on the left side: 285 + x = 421

Now, isolate 'x' by subtracting 285 from both sides: x = 421 - 285 x = 136

So, the solution for Equation 2 is x = 136.

Equation 3: 871 - (x + 157) = 385 First, distribute the negative sign inside the parentheses: 871 - x - 157 = 385

Combine the constants on the left side: 714 - x = 385

Now, isolate 'x' by subtracting 714 from both sides: -x = 385 - 714 -x = -329

Multiply both sides by -1 to solve for 'x': x = 329

So, the solution for Equation 3 is x = 329.

To summarize: Equation 1: x = 574 Equation 2: x = 136 Equation 3: x = 329