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NeX [460]
3 years ago
10

0.5 (2x + 2) = -4 Solve for x.

Mathematics
2 answers:
Marat540 [252]3 years ago
8 0
Your math problem:0.5(2x+2)=-4

Simplify both sides of the equation:
0.5(2x+2)=-4
Distribute: (0.5) (2x) + (0.5) (2) = -4
You will get x + 1 = -4 (subtract from both sides.)
x=-5
0.5(2*-5+2)=4 <- that was the check
So now you know you’re correct!!
So that’s you’re final answer
x= -5
Hope I helped!!
Ivanshal [37]3 years ago
3 0

0.5(2x+2)=-4

Multiply by 2 on both sides

2x+2=-8

Subtract 2 on both sides

2x=-10

Divide by 2 on both sides

x=-5

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What is the sum and the product of X to the power of 2, and X
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3 years ago
3a x 5b x 7c = 39375, then find value of 7a - 2b + 3c​
garik1379 [7]

Answer:

Step-by-step explanation:

Simplifying

(7a + -2b) + -1[2(3a + -1c) + -3(2b + -3c)] = 0

Remove parenthesis around (7a + -2b)

7a + -2b + -1[2(3a + -1c) + -3(2b + -3c)] = 0

7a + -2b + -1[(3a * 2 + -1c * 2) + -3(2b + -3c)] = 0

7a + -2b + -1[(6a + -2c) + -3(2b + -3c)] = 0

7a + -2b + -1[6a + -2c + (2b * -3 + -3c * -3)] = 0

7a + -2b + -1[6a + -2c + (-6b + 9c)] = 0

Reorder the terms:

7a + -2b + -1[6a + -6b + -2c + 9c] = 0

Combine like terms: -2c + 9c = 7c

7a + -2b + -1[6a + -6b + 7c] = 0

7a + -2b + [6a * -1 + -6b * -1 + 7c * -1] = 0

7a + -2b + [-6a + 6b + -7c] = 0

Reorder the terms:

7a + -6a + -2b + 6b + -7c = 0

Combine like terms: 7a + -6a = 1a

1a + -2b + 6b + -7c = 0

Combine like terms: -2b + 6b = 4b

1a + 4b + -7c = 0

Solving

1a + 4b + -7c = 0

Solving for variable 'a'.

Move all terms containing a to the left, all other terms to the right.

Add '-4b' to each side of the equation.

1a + 4b + -4b + -7c = 0 + -4b

Combine like terms: 4b + -4b = 0

1a + 0 + -7c = 0 + -4b

1a + -7c = 0 + -4b

Remove the zero:

1a + -7c = -4b

Add '7c' to each side of the equation.

1a + -7c + 7c = -4b + 7c

Combine like terms: -7c + 7c = 0

1a + 0 = -4b + 7c

1a = -4b + 7c

Divide each side by '1'.

a = -4b + 7c

Simplifying

a = -4b + 7c

8 0
3 years ago
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