Question

Решите уравнения.Первую цифру ответа каждого уравнения замените буквой и прочтите зашифрованное словоа)(а-15)-16=18б)(х-41)-21=8в)(136-х)-16=52г)(558+х)-52=746Очень нужно,помогите!

Answer 1

 Решение:
(a-15)-16=18
для начала раскоем скобки
а-15-16=18а=18+15+16а=49
проверка
(49-15)-16=18
18=18

 (136-x)-16=52
для начала раскоем скобки
136-х-16=52х=136-52-16х=68
провверка:(136-68)-16=52
52=52 

(x-41)-21=8
для начала раскоем скобки
х-41-21=8х=8+41+21х=70
проверка:(70-41)-21=8
8=8 

(558+x)-52=746
для начала раскроем скобки
558+х-52=746х=746-558+52х=240
проверка:(558+240)-52=746
746=746. 

Answer 2

Solving Equations

Let's solve the given equations one by one:

a) (a - 15) - 16 = 18

To solve this equation, we can start by simplifying the expression on the left side:

(a - 15) - 16 = 18 a - 15 - 16 = 18 a - 31 = 18

Next, we can isolate the variable 'a' by adding 31 to both sides of the equation:

a - 31 + 31 = 18 + 31 a = 49

The first digit of the answer is 4.

b) (x - 41) - 21 = 8

Following a similar approach, we can simplify the equation:

(x - 41) - 21 = 8 x - 41 - 21 = 8 x - 62 = 8

To isolate 'x', we add 62 to both sides of the equation:

x - 62 + 62 = 8 + 62 x = 70

The first digit of the answer is 7.

c) (136 - x) - 16 = 52

Simplifying the equation:

(136 - x) - 16 = 52 136 - x - 16 = 52 120 - x = 52

To isolate 'x', we subtract 120 from both sides of the equation:

120 - x - 120 = 52 - 120 -x = -68

Multiplying both sides by -1 to solve for 'x':

x = 68

The first digit of the answer is 6.

d) (558 + x) - 52 = 746

Simplifying the equation:

(558 + x) - 52 = 746 558 + x - 52 = 746 506 + x = 746

To isolate 'x', we subtract 506 from both sides of the equation:

506 + x - 506 = 746 - 506 x = 240

The first digit of the answer is 2.

The first digits of the solutions to the given equations are: a) 4 b) 7 c) 6 d) 2

By replacing the first digit of each solution with a letter, we get the encoded word: GATE.

Please let me know if you need any further assistance!