X=6

-6+ 7(y) = 8
-6 + 7(2)
-6 + 14
You subtract when adding a positive and negative number
Since the positive number is higher, your answer will be positive.

-6 + 14 = 8

7 0

3 years ago

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Rearrange the equation a = 1/2 b to make b the formula

Evgesh-ka [11]

Answer: b = 2a

Step-by-step explanation:

Original equation

a = (1/2) b

Multiply 2 on both sides

a * 2 = (1/2) b * 2

$\Large\boxed{b=2a}$

Hope this helps!! :)

Please let me know if you have any quesitons

8 0

2 years ago

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Find the slope 9,4 and 0,5

son4ous [18]

$\bf \begin{array}{ccccccccc}
&&x_1&&y_1&&x_2&&y_2\\
% (a,b)
&&(~{{ 9}} &,&{{ 4}}~) 
% (c,d)
&&(~{{ 0}} &,&{{ 5}}~)
\end{array}
\\\\\\
% slope = m
slope = {{ m}}\implies 
\cfrac{\stackrel{rise}{{{ y_2}}-{{ y_1}}}}{\stackrel{run}{{{ x_2}}-{{ x_1}}}}\implies \cfrac{5-4}{0-9}\implies \cfrac{1}{-9}\implies -\cfrac{1}{9}$

7 0

4 years ago

The sum of two numbers is 45 and the different is 21.what are the numbers

ryzh [129]

A + b = 45
a - b = 21
a = 21 + b
Use substitution
21 + b + b = 45
2b = 24
b = 12
45 - 12 = 33
The numbers are 33 and 12

6 0

3 years ago

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