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zzz [600]
2 years ago
15

2(x + 3) = x - 4 Solve this equation

Mathematics
2 answers:
a_sh-v [17]2 years ago
8 0

Hii!

\leadsto\parallel\boldsymbol{Answer.}\parallel\gets

__________________________________________________________

x=-10

__________________________________________________________

\multimap\parallel\boldsymbol{Explanation.}\parallel\gets

Let's distribute 2 first. \sf 2(x+3)== > 2x+6}

\sf 2x+6=x-4}.

Now subtract 6 from both sides.

\sf 2x=x-4-6} \\ 2x=x-10

Now we subtract x from both sides.

\sf 2x-x=-10}\\x=-10}

Hope that this helped! Best Wishes.

\textsl{Reach far. Aim high. Dream big.}

\boldsymbol{-Greetings!-}

____________________________________________________________

marissa [1.9K]2 years ago
7 0

Answer:

Its x=-10

Step-by-step explanation:

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X^2 + y^2=40 and y=x-4 solve this simultaneous equation
inn [45]
Write x-4 instead of y.
x²+(x-4)²=40
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2x²-8x-24=0
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(x-6)(x+2)=0
x=6 or x=-2

for x=6, y=6-4 = 2
for x=-2, y=-2-4 = -6
3 0
4 years ago
Horses are to race over a certain english meadow for a distance of 6.7 furlongs. what is the race distance in units of (a) rods
Law Incorporation [45]

we are given

distance=6.7 furlongs

(a) In rods

we know that

1 furlong=40.0001 rod

we can multiply both sides by 6.7

6.7*1 furlong=6.7*40.0001 rod

6.7furlong=268.00067 rods..............Answer

(b) In chains

we know that

1 furlong=10 chains

we can multiply both sides by 6.7

6.7*1 furlong=6.7*10 chains

6.7furlong=67 chains..............Answer


7 0
3 years ago
A lake near the Arctic Circle is covered by a 222-meter-thick sheet of ice during the cold winter months. When spring arrives, t
Ivanshal [37]

S(t) = 3.82 - 0.2t


Step-by-step explanation:


After 7 weeks, the ice is 2.42 meters thick. The ice loses 0.2 meters of thickness per week; this means on the 7th week, it has lost 7(0.2) = 1.4 meters of thickness.


This means the ice started at 2.42+1.4 = 3.82 meters thick.


Our function will start at the original thickness of the ice, 3.82 meters.


Since the ice is losing thickness, we will subtract; it loses at a rate of 0.2 meters per week (t), which gives us 0.2t. This is subtracted from the original, 3.82 meters, giving us


S(t) = 3.82 - 0.2t



7 0
3 years ago
Read 2 more answers
He mixes 8 cups of water with glue if he wants to make a double batch how many quarts of water does he need how much water is th
Olegator [25]

Answer: 1 gallon

8 cups * 2=16 cups

16 cups= 4 quarts

4 quarts= 1 gallon

6 0
4 years ago
Will AWARD BRAINLIEST! PLEASE HELP! Dasha has 4 times more rose bushes in her garden than Anna. After 39 rose bushes were remove
Lunna [17]

Answer:

d=104

Dasha's garden had 104 originally

Step-by-step explanation:

let d for dasha and a for Anna

d=4a

a=d/4

d-39=a+39

d-39=d/4 +39

d-d/4=39+39

3/4 d =78

3d=4*78

d=(4*78)/3

d=312/3

d=104

Dasha's garden had 104 originally

8 0
3 years ago
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