Question

Please help me i need help

A) 0.8 (2x + x) + 3(7 - 4.1x) =
x + 21

(B) 12
(6x + 22y) =
x +
y

(C) (3x -
) - (6x + 1) = -3x - 2

(D) 112
x + 27y =
(12
x + 9y)

Answer 1

A) The simplified Expression 0.8(2x + x) + 3(7 - 4.1x) =
`(x + 21)/(2)\]` is -
`(21)/(22.8)\]`

B) The value of y is
`(3x)/(5)\].`

C) The value of x is 3/2

D) The simplified expression is 1343x + 981y = 0

A) Simplifying the Expression:

`\[0.8(2x + x) + 3(7 - 4.1x) = (x + 21)/(2)\]`

The first step is to distribute the coefficients and combine like terms:

`\[1.6x + 0.8x + 21 - 12.3x = (x + 21)/(2)\]`

Combining like terms on the left side gives:

`\[-10.9x + 21 = (x + 21)/(2)\]`

Multiply both sides by 2 to eliminate the fraction:

-21.8x + 42 = x + 21

Now, solve for \(x\):

`\[x = (21 - 42)/(1 + 21.8) = -(21)/(22.8)\]`

B) Solving for y:

`\[12 = (6x + 22y)/(x + y)\]`

Multiply both sides by \(x + y\) to eliminate the fraction:

`\[12(x + y) = 6x + 22y\]`

Distribute and simplify:

`\[12x + 12y = 6x + 22y\]`

Isolate \(y\) on one side:

12y - 22y = 6x - 12x

Combine like terms:

-10y = -6x

Solve for \(y\):

`\[y = (3x)/(5)\]`

C) Solving for x:

(3x - (6x + 1) = -3x - 2

Expand the parentheses and simplify:

3x - 6x - 1 = -3x - 2

Combine like terms and isolate \(x\):

-3x = -2

Solve for \(x\):

x = 3/2

**D) Simplifying the Expression:**

`\[112 = (x + 27y)/(12x + 9y)\]`

Multiply both sides by the denominator to eliminate the fraction:

`\[112(12x + 9y) = x + 27y\]`

Distribute and simplify:

1344x + 1008y = x + 27y

Combine like terms:

1343x + 981y = 0

This is the simplified expression.

The probable question may be:

A) Simplify the Expression:

\[0.8(2x + x) + 3(7 - 4.1x) = \frac{x + 21}{2}\]

B) Solve for y:

\[12 = \frac{6x + 22y}{x + y}\]

C) Solve for x:

\[(3x - \_\_\_) - (6x + 1) = -3x - 2\]

D) Simplify the Expression:

\[112 = \frac{x + 27y}{12x + 9y}\]