Question

5(8х＋3)-12=83 7(2х+9)+3х=114 3(4х+13)-25=74

Answer 1

Ответ:

х = 2

х = 3

х = 5

Пошаговое объяснение:

1.

5(8х+3)-12=83

40х+15-12=83

40х+3=83

40х=80

х=2

2.

7(2х+9)+3х=114

14х+63+3х=114

17х=114-63

17х=51

х=51/17

х=3

3.

3(4х+13)-25=74

12х+39-25=74

12х+14=74

12х=74-14

12х=60

х=5

Answer 2

Ответ:

1. x = 2

2. x = 3

3. x = 5

Пошаговое объяснение:

1. 5(8x + 3) - 12 = 83

40x + 15 - 12 = 83

40x + 3 = 83

40x = 83 - 3

40x = 80

x = 2

2. 7(2x + 9) + 3x = 114

14x + 63 + 3x = 114

17x + 63 = 114

17x = 114 - 63

17x = 51

x = 3

3. 3(4x + 13) - 25 = 74

12x + 39 - 25 = 74

12x + 14 = 74

12x = 74 - 14

12x = 60

x = 5

Answer 3

To solve these equations, let's simplify each one step by step:

Equation 1: 5(8x + 3) - 12 = 83

Start by distributing 5 to the terms inside the parentheses: 40x + 15 - 12 = 83

Combine like terms: 40x + 3 = 83

Next, isolate the variable term by subtracting 3 from both sides: 40x = 83 - 3 40x = 80

Finally, solve for x by dividing both sides by 40: x = 80 / 40 x = 2

So the solution to Equation 1 is x = 2.

Equation 2: 7(2x + 9) + 3x = 114

Again, distribute 7 to the terms inside the parentheses: 14x + 63 + 3x = 114

Combine like terms: 17x + 63 = 114

Next, isolate the variable term by subtracting 63 from both sides: 17x = 114 - 63 17x = 51

Finally, solve for x by dividing both sides by 17: x = 51 / 17 x = 3

So the solution to Equation 2 is x = 3.

Equation 3: 3(4x + 13) - 25 = 74

Distribute 3 to the terms inside the parentheses: 12x + 39 - 25 = 74

Combine like terms: 12x + 14 = 74

Next, isolate the variable term by subtracting 14 from both sides: 12x = 74 - 14 12x = 60

Finally, solve for x by dividing both sides by 12: x = 60 / 12 x = 5

So the solution to Equation 3 is x = 5.

In summary: Equation 1: x = 2 Equation 2: x = 3 Equation 3: x = 5