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DIA [1.3K]
3 years ago
14

2x + 3 = 7418 = -22aWhat are the VARIABLES in these two equations?​

Mathematics
2 answers:
Anika [276]3 years ago
4 0

Answer:

x=2

a=19

Step-by-step explanation:

2x+3=7

2x+3-3=7-3

2x=4

2x/2=4/2

x=2

418=-22a

418/(-22)=-22a/(-22)

19=a

e-lub [12.9K]3 years ago
4 0
Answer -
X=2
A=19
Explanation
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(x+3)(x-5)-(4x+1)(1-4x)=17x^
Greeley [361]

Answer: \boxed{Sol=\{\dfrac{7}{4} \}}\\

I suppose 17x^ means 17x².

and that we must solve the equation.

Step-by-step explanation:

(x-3)(x-5)-(4x+1)(1-4x)=14x^2\\\\x^2-3x-5x+15+(4x+1)(4x-1)=17x^2\\\\x^2-8x+15+16x^2-1=17x^2\\\\-8x+14=0\\\\8x=14\\\\x=\dfrac{7}{4} \\\\\boxed{Sol=\{\dfrac{7}{4} \}}\\

6 0
3 years ago
3 + (10 − 2)2 ÷ 4 ⋅ 1/2 whole to the power of 4
pshichka [43]

Answer:

equals 4 i believe..

Step-by-step explanation:


4 0
3 years ago
Wouldn't it be -1 I keep getting me wrong answer
AVprozaik [17]
Have u tryed 1 insted of -1 or it might be o solution

6 0
3 years ago
125m-75m+43,875=45,450-175m
Nataly [62]
125m-75m+43,875=45,450-175m

We simplify the equation to the form, which is simple to understand
125m-75m+43,875=45,450-175m

We move all terms containing m to the left and all other terms to the right.
+125m-75m+175m=+45.45-43.875

We simplify left and right side of the equation.
+225m=+1.575

We divide both sides of the equation by 225 to get m.
m=0.007

(I’m sorry if I’m wrong I tried)
4 0
4 years ago
In the 75th Congress (1937−1939) there were in the Senate 75 Democrats, 17 Republicans, and 4 members of other parties. Suppose
ira [324]

Answer:

42 Democrats members

12 Republicans members

2 other parties members

Step-by-step explanation:

We know that there are a total number of voters of

  • 75 (democrats)+17 (Republicans)+ 4( Other parties)=  96 voters

And we know that the bill has passed with 16 nore votes in favor that against, so let's calculate how many votes in favor of the bill we have:

  • 96 Votes = F (votes in Favor)+ A (votes against)

also: F= A+16= A = F-16, so:

  • 96= F+A= F+F-16 => F= 56 votes in favor of the bill

Thos 56 votes are the sum of the votes in favor from all the parties:

56 = D (votes in favor of democrats)+R ((votes in favor of Republicans)+OTH (votes in favor of other parties)

=> 56= D+R+OTH (A)

also democrat's votes in favor are three times the sum of non-democrat's votes in favor:

  • D= 3*( R+OTH) => OTH= D/3-R

and we have 30 more democrats thar republicans voting in favor:

  • D= R+30 => R=D-30

if we replace in the (A) formula:

56 = D+R+OTH => 56= D+D-30+D/3-D+30 =>

  • 56=4/3*D => D=42 (DEMOCRATS VOTES IN FAVOR)
  • R= D-30 => R= 12 (REPUBLICAN VOTES IN FAVOR)
  • OTH= D/3-R= 14-12= 2 (OTHER PARTIE'S VOTES IN FAVOR)

5 0
3 years ago
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