Question

1) (x+72)+53=1962 (x-72)+53=963) 569-(435-x)=2474) 18×(x+14)=3785) 11x + 8x=456​

Answer 1

Ответ:

1) 71, 2) 115, 3) 113, 4) 7, 5) 24

Пошаговое объяснение:

1)

(x+72)+53=196

x+72+53=196

x+125=196

x=196-125

x=71

2)

(x-72)+53=96

x-72+53=96

x-19=96

x=96+19

x=115

3)

569-(435-x)=247

569-435+x=247

134+x=247

x=247-134

x=113

4)

18*(x+14)=378

x+14=21

x=21-14

x=7

5)

11x + 8x=456

19x=456

x=456/19

x=24

Answer 2

Let's solve each equation step by step:

1. (x + 72) + 53 = 196

To solve for x, first, combine like terms: x + 72 + 53 = 196 x + 125 = 196

Next, isolate x by subtracting 125 from both sides: x = 196 - 125 x = 71

2. (x - 72) + 53 = 96

Similarly, combine like terms: x - 72 + 53 = 96 x - 19 = 96

Now, isolate x by adding 19 to both sides: x = 96 + 19 x = 115

3. 569 - (435 - x) = 24

First, simplify the expression inside the parentheses: 569 - 435 + x = 24 134 + x = 24

Now, isolate x by subtracting 134 from both sides: x = 24 - 134 x = -110

4. 18 × (x + 14) = 378

Divide both sides by 18 to solve for x: x + 14 = 378 / 18 x + 14 = 21

Now, isolate x by subtracting 14 from both sides: x = 21 - 14 x = 7

5. 11x + 8x = 456

Combine like terms: 19x = 456

To solve for x, divide both sides by 19: x = 456 / 19 x ≈ 24

So, the solutions for each equation are:

1. x = 71
2. x = 115
3. x = -110
4. x = 7
5. x ≈ 24