Question

1)3(7x-2)=38-2(5-2x) 2)8(3u+4)-(4u-1)=43

Answer 1

Ответ:

1) 3(7x-2)=38-2(5-2x)

21x – 6 = 38 – 10 + 4x

21x – 4x = – 10 + 38 + 6

17x = 34

x = 2

2) 8(3u+4)-(4u-1)=43

24u + 32 – 4u + 1 = 43

24u – 4u = 43 – 1 – 32

20u = 10

u = 0.5

Answer 2

Ответ:

1)

Пошаговое объяснение:

1)21x-6=38-10+4x

17x=35

x=2

2)24u+32-4u-1=43

20u=10

u=0.5

Answer 3

Let's solve the equations step by step:

1. 3(7x - 2) = 38 - 2(5 - 2x)

Expand the expressions on both sides of the equation:

21x - 6 = 38 - 10 + 4x

Combine like terms:

21x - 6 = 28 + 4x

Now, let's get all the x terms on one side and the constants on the other side:

21x - 4x = 28 + 6

Combine the x terms:

17x = 34

Finally, solve for x:

x = 34 / 17

x = 2

So, the solution for this equation is x = 2.

2. 8(3u + 4) - (4u - 1) = 43

Expand the expressions on both sides of the equation:

24u + 32 - 4u + 1 = 43

Combine like terms:

20u + 33 = 43

Now, get the u terms on one side and the constant on the other side:

20u = 43 - 33

20u = 10

Finally, solve for u:

u = 10 / 20

u = 0.5

So, the solution for this equation is u = 0.5.