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irina1246 [14]
3 years ago
5

If 2x + 8 = 16 , what is the value of x + 4 ?

Mathematics
2 answers:
KonstantinChe [14]3 years ago
8 0

Answer:

the answer is 879

Step-by-step explanation:

Tema [17]3 years ago
4 0

Answer:

X=4

Step-by-step explanation:

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Solve a = a+b+c+d/4 for c
kupik [55]
A=a+b+c+d/4
subtract a from both sides
0=b+c+d/4
Subtract b from both sides
-b=c+d/4
Finally subtract d/4 from both sides
c=-d/4-b
4 0
2 years ago
How to do long division
fomenos

Answer:

steps: divide, multiply, subtract, and bring down.

Step 1. Calculate how many times the number outside the division bar goes into the first number inside the bar. Step 2. Put the answer on top of the bar. Step 3. Multiply the number outside the division bar by the number at the top of the bar.

4 0
3 years ago
Solve using the method of elimination and determine if the system has 1 solution, no solutions, or infinite solutions
Minchanka [31]

\begin{array}{rrrrr} 10x&-&18y&=&2\\ -5x&+&9y&=&-1 \end{array}~\hfill \implies ~\hfill \stackrel{\textit{second equation }\times 2}{ \begin{array}{rrrrr} 10x&-&18y&=&2\\ 2(-5x&+&9y&)=&2(-1) \end{array}} \\\\[-0.35em] ~\dotfill\\\\ \begin{array}{rrrrr} 10x&-&18y&=&2\\ -10x&+&18y&=&-2\\\cline{1-5} 0&+&0&=&0 \end{array}\qquad \impliedby \textit{another way of saying \underline{infinite solutions}}

if we were to solve both equations for "y", we'd get

10x-18y=2\implies 10x-2=18y\implies \cfrac{10x-2}{18}=y\implies \cfrac{5}{9}x-\cfrac{1}{9}=y \\\\\\ -5x+9y=-1\implies 9y=5x-1\implies y=\cfrac{5x-1}{9}\implies y = \cfrac{5}{9}x-\cfrac{1}{9}

notice, the 1st equation is really the 2nd in disguise, since both lines are just pancaked on top of each other, every point in the lines is a solution or an intersection, and since both go to infinity, well, there you have it.

8 0
1 year ago
The quotient of a number c and 2 is-16​
My name is Ann [436]

Answer:

c=-32

Step-by-step explanation:

c/2=-16

c=-16*2

c=-32

3 0
3 years ago
Please answer the question, and explain each step
natta225 [31]
The steps are shown here.

1) Factoring
2) Completing the square
3) Quadratic Formula
4) Graphing

So basically the answer would either be 5 or -5.
5 0
3 years ago
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