Question

4) -1,5 =x - 2,9 5) y*(-1,8)=0,9 6) 1,2y = -6 7) y : (-0,36) = 5 8)y : (-3,4) = -0,1 9) 2,3 +5 = -8,6+ 2,5x 10) 5x+(-1,6x+7)=4x -(-0,5x+4) 11) 4(0,5x-5) = -3(1,6 -3,2x) 12) 4x-(x+ 1/5)= 1/3(-6x+ 1.5) помогите пожалуйста, не только ответы, но и решение

Answer 1

Пошаговое объяснение:

С решением если ещё надо.

Answer 2

To solve the given system of equations, let's go step by step.

Step 1: Simplify the equations

Let's simplify each equation by performing the necessary calculations.

Equation 1: -1.5 + x - 2.9 = 5 Simplifying, we get: x - 4.4 = 5

Equation 2: y * (-1.8) = 0.9 + 6 Simplifying, we get: -1.8y = 6.9

Equation 3: 1.2y = -6 + 7 Simplifying, we get: 1.2y = 1

Equation 4: y / (-0.36) = 5 Simplifying, we get: y = -1.8

Equation 5: y / (-3.4) = -0.1 Simplifying, we get: y = 0.34

Equation 6: 2.3 + 5 = -8.6 + 2.5x + 10 Simplifying, we get: 7.3 = -6.1 + 2.5x

Equation 7: 5x + (-1.6x + 7) = 4x - (-0.5x + 4) + 11 Simplifying, we get: 5x - 1.6x + 7 = 4x + 0.5x - 4 + 11

Equation 8: 4(0.5x - 5) = -3(1.6 - 3.2x) + 12 Simplifying, we get: 2x - 20 = -4.8 + 9.6x + 12

Equation 9: 4x - (x + 1/5) = 1/3(-6x + 1.5) Simplifying, we get: 4x - x - 1/5 = -2x + 0.5/3

Step 2: Solve for the variables

Now, let's solve for the variables using the simplified equations.

From Equation 1: x - 4.4 = 5 Adding 4.4 to both sides, we get: x = 9.4

From Equation 2: -1.8y = 6.9 Dividing both sides by -1.8, we get: y = -3.8333...

From Equation 3: 1.2y = 1 Dividing both sides by 1.2, we get: y = 0.8333...

From Equation 4: y = -1.8

From Equation 5: y = 0.34

From Equation 6: 7.3 = -6.1 + 2.5x Adding 6.1 to both sides, we get: 13.4 = 2.5x Dividing both sides by 2.5, we get: x = 5.36

From Equation 7: 5x - 1.6x + 7 = 4x + 0.5x - 4 + 11 Simplifying, we get: 3.4x + 7 = 4.5x + 7 Subtracting 3.4x from both sides, we get: 7 = 1.1x Dividing both sides by 1.1, we get: x = 6.3636...

From Equation 8: 2x - 20 = -4.8 + 9.6x + 12 Simplifying, we get: 2x - 20 = 9.6x + 7.2 Subtracting 9.6x from both sides, we get: -7.6x - 20 = 7.2 Adding 20 to both sides, we get: -7.6x = 27.2 Dividing both sides by -7.6, we get: x = -3.5789...

From Equation 9: 4x - x - 1/5 = -2x + 0.5/3 Simplifying, we get: 3x - 1/5 = -2x + 0.1667... Adding 2x to both sides, we get: 5x - 1/5 = 0.1667... Adding 1/5 to both sides, we get: 5x = 0.3667... Dividing both sides by 5, we get: x = 0.0733...

Step 3: Final Solution

The solution to the given system of equations is: x = 9.4 y = -1.8 y = 0.34 x = 5.36 x = 6.3636... x = -3.5789... x = 0.0733...

Please note that there seems to be a contradiction in the given equations, as some of the solutions are conflicting. It's recommended to double-check the equations or provide additional information if needed.