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3 years ago

7

Solve for x: 2/5 (x - 2) = 4x. A. 2/9 B. 9 C. -2/9 D. -9/2

2 answers:

e-lub [12.9K]3 years ago

3 0

(2/5)(x-2)=4x
multily both sides by 5/2 (2/5 times 5/2=10/10=1)
1(x-2)=20x/2
x-2=10x
minus x both sides
-2=9x
divide 9
-2/9=x

Temka [501]3 years ago

3 0

Step 1: Simplify both sides of the equation.
2/5(x-2)4x

Simplify: (show steps)
2/5x+-4/5=4x

Step 2: Subtract 4x form both sides.
2/5x+-4/5-4x=4x-4x

Step 3: Add 4/5 to both sides.
-18/5x+-4/5+4/5=0+4/5

Step 4: Multiply both sides by 5/-(18).

(5/-18)*(-18/5)*=(5/-18)*(4/5)

Then your answer would be -2
x= -----
9

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Read 2 more answers

Select all of the following statements that are true.

Ivanshal [37]

Answer:

A, B, C, D, F (or all but the second to last one)

Step-by-step explanation:

Let's look at each of these problems

A. $-\frac{3}{4} + \frac{3}{4} = 0 = 0 = True$

B. $-\frac{3}{4} + 0 = -\frac{3}{4} = -\frac{3}{4} = True$

C. $-\frac{3}{4} + \frac{3}{4} = \frac{3}{4} + (-\frac{3}{4} ) = (-\frac{3}{4} ) = True$

D. $-\frac{3}{4} - \frac{3}{4} = -(\frac{3}{4} + \frac{3}{4} ) = -(\frac{6}{4} ) = True$

E. $-\frac{3}{4} + \frac{3}{4} = 0 \neq (-\frac{3}{4}) = False$

F. $\frac{3}{4} -\frac{3}{4} = \frac{3}{4} + (-\frac{3}{4}) = 0 = True$

Hope this helped!

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3 years ago