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notka56 [123]
3 years ago
5

Help pls i’ll give 70 points and mark brainlest

Mathematics
1 answer:
Dafna11 [192]3 years ago
5 0

Answer:

2 times 4 equals eight and minus nine which will

be -1

Step-by-step explanation:

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Solve 7x − 2(x + 1) = 6x + 14. (5 points)
miv72 [106K]

Answer:

Simplifying

7x + -2(x + 1) = 6x + 14

Reorder the terms:

7x + -2(1 + x) = 6x + 14

7x + (1 * -2 + x * -2) = 6x + 14

7x + (-2 + -2x) = 6x + 14

Reorder the terms:

-2 + 7x + -2x = 6x + 14

Combine like terms: 7x + -2x = 5x

-2 + 5x = 6x + 14

Reorder the terms:

-2 + 5x = 14 + 6x

Solving

-2 + 5x = 14 + 6x

Solving for variable 'x'.

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

Add '-6x' to each side of the equation.

-2 + 5x + -6x = 14 + 6x + -6x

Combine like terms: 5x + -6x = -1x

-2 + -1x = 14 + 6x + -6x

Combine like terms: 6x + -6x = 0

-2 + -1x = 14 + 0

-2 + -1x = 14

Add '2' to each side of the equation.

-2 + 2 + -1x = 14 + 2

Combine like terms: -2 + 2 = 0

0 + -1x = 14 + 2

-1x = 14 + 2

Combine like terms: 14 + 2 = 16

-1x = 16

Divide each side by '-1'.

x = -16

Simplifying

x = -16

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
What does b do in y=ax^2+bx+c. How can b being positive or negative affect a graph?
Dmitry_Shevchenko [17]

Answer:

The positions of the vertex and the axis of symmetry change.

Step-by-step explanation:

Let’s examine three parabolas in which a and c remain constant and only b changes.

(1) y = x² -  2x + 1

(2) y = x²         + 1

(3) y = x² + 2x + 1

In the image below,

Equation (1) is the black parabola, Equation (2) is green, and Equation (3) is red.

When b is more negative, the vertex moves down, and the axis of symmetry moves to the right.

When b is more positive, the vertex moves down, and the axis of symmetry moves to the left.

4 0
3 years ago
Solve the equation! 6(3c-5d+6)
Anna007 [38]

Answer:

18c-30d+36

Step-by-step explanation:

6 0
4 years ago
A recipe called for the ratio of sugar to flour to be 10: 1. If you used 90 ounce of sugar, how
dem82 [27]

Answer:9 ounces of flours

Step-by-step explanation:90:9 ratio or sugar to flour

5 0
3 years ago
Can someone answer this question, and give me the work?
dmitriy555 [2]
2500/4
S=625 pounds of sod
5 0
4 years ago
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