Question

3(1-x)+5(x+2)=1-4x 3(2-x)-(5x+4)=0,4-16x

Answer 1

Ответ:

1)3(1-х)+5(х+2)=1-4х

3-3х+5х+10=1-4х

-3х+5х+4х=1-10-3

6х=-12

Х=-2

2)3(2-х)-(5х+4)=0,4-16х

6-3х-5х-4=0,4-16х

-3х-5х+16х=0,4+4-6

8х=-1,6

Х=-0,2

Answer 2

Пошаговое объяснение:

3(1-x)+5(x+2)=1-4x 3(2-x)-(5x+4)=0,4-16x

3-3x+5x+10=1-4x 3(2-x-5x-4)=0,4-16x

13+2x=1-4x 6-3x-15x-12=0,4-16x

2x+4x=1-13 16x-15x-3x= 0,4-6

6x= -12 - 2x= - 5,6

x= -2 x= 2,8

Answer 3

Let's solve the given equations step by step.

Equation 1: 3(1-x) + 5(x+2) = 1 - 4x

Expanding the equation: 3 - 3x + 5x + 10 = 1 - 4x

Combining like terms: 2x + 13 = 1 - 4x

Rearranging the terms: 2x + 4x = 1 - 13

Combining like terms: 6x = -12

Dividing both sides by 6: x = -12/6

Simplifying: x = -2

Therefore, the solution to Equation 1 is x = -2.

Equation 2: 3(2-x) - (5x+4) = 0.4 - 16x

Expanding the equation: 6 - 3x - 5x - 4 = 0.4 - 16x

Combining like terms: -8x + 2 = 0.4 - 16x

Rearranging the terms: -8x + 16x = 0.4 - 2

Combining like terms: 8x = -1.6

Dividing both sides by 8: x = -1.6/8

Simplifying: x = -0.2

Therefore, the solution to Equation 2 is x = -0.2.

To summarize:

• Solution to Equation 1: x = -2
• Solution to Equation 2: x = -0.2