Question

1)745-(b-358)=455 2)(y-246)-154=300​

Answer 1

Ответ:

1)648

Пошаговое объяснение:

1) 748-b+358=455

1103-b=455

-b=455-1103

-b=-648

b=648

Answer 2

Let's solve these equations step by step:

1. 745 - (b - 358) = 455

First, we need to simplify the equation by removing the parentheses:

745 - b + 358 = 455

Now, let's isolate the variable 'b' by moving the constants to the other side of the equation:

745 + 358 - 455 = b

Now, calculate the values on the left side:

1103 - 455 = b

648 = b

So, the solution to the first equation is b = 648.

2. (y - 246) - 154 = 300

First, simplify the equation by removing the parentheses:

y - 246 - 154 = 300

Now, let's isolate the variable 'y' by moving the constants to the other side of the equation:

y - 246 - 154 + 154 = 300 + 154

Now, calculate the values on both sides:

y - 246 = 454

To solve for 'y,' add 246 to both sides:

y - 246 + 246 = 454 + 246

y = 700

So, the solution to the second equation is y = 700.