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snow_lady [41]
3 years ago
12

-3a - 4(a - 6) = 24 - 7a Solve the equation Thanks

Mathematics
1 answer:
Dominik [7]3 years ago
5 0

-3a-4(a-6)=24-7a

-3a-4a+24=24-7a

-7a+24=24-7a

-7a+24=-7a+24

-7a+24-24=-7a+24-24

Simplify

Subtract the numbers

Subtract the numbers

−7a=-7a

Add 7a to both sides of the equation

-7a+7a =-7a+7a

Simplify

Combine like terms

Combine like terms

0=0

answer is 0=0

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Solve the simultaneous equations using an algebraic method.<br> x + 2y = 13<br> 3x + y = 24
Firlakuza [10]
X=7, y=3
because it is an algebraic method you have to solve for an x or y in either equation, and then plug that into the other equation. it’s helpful for these problems to check your work and plug the numbers back into the equations and the end for future reference !

4 0
2 years ago
808, 408, 208,108, 68 find out wrong number.​
EastWind [94]

68 is the wrong number in the sequence 808, 408, 208,108, 68

<h3>What is Number system?</h3>

A number system is defined as a system of writing to express numbers.

Sequence is an enumerated collection of objects in which repetitions are allowed and order matters.

The given sequence is 808, 408, 208,108, 68

Eight hundred eight, Four hundred and eight, two hundred and eight, one hundred eight and sixty eight.

808, 408, 208,108, 68

Let us find the difference between the consecutive numbers

400, 200, 100, 40

As we observe the first three terms having the common ratio where as 40 and 100 has different ratio.

Hence, 68 is the wrong number in the sequence 808, 408, 208,108, 68

To learn more on Number system click:

brainly.com/question/22046046

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6 0
1 year ago
Read 2 more answers
Find the number of gallons of sulferic acid in 50 gallons of solution in a tank, if the percent of sulfuric acid is 50%.
Leno4ka [110]

Answer:

25 gallons of sulfuric acid

Step-by-step explanation:

Find how much sulfuric acid is in the tank by finding 50% of 50 (the total gallons of solution):

50(0.5)

= 25

So, there are 25 gallons of sulfuric acid.

8 0
3 years ago
Given this system of equations with three unknown variables, what is the value of C?
mina [271]

This is basically a system of 3 linear equations with variables x, y and c.


x+y = 6...................................(1)

5x/3 + y = c .........................(2)

2y = c-4x .............................(3)


(2)-(1)

5x/3-x +y-y = c-6 => 2x/3 = c-6 => x = (3/2)(c-6)=3c/2-9 ..............(4)

(3) - 2(2)

2y-2y - 10x/3 = c -4x -2c

=> 2x/3 = -c

=> x = -(3/2)c.............................................................................................(5)


Finally, equate (4) & (5) to get

3c/2-9 = -3c/2

=>

3c = 9

=> c=3

3 0
3 years ago
Read 2 more answers
Write two fractions multiplication expressions that are equivalent to the expression 3/4X2/3
kolbaska11 [484]

Answer:

1st fraction =

2/6*3/2

2nd fraction =

3/6*2/2

Step-by-step explanation:

7 0
3 years ago
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