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3 years ago

2/3 (3x+9)=-2 (2x+6)

Mathematics

2 answers:

rosijanka [135]3 years ago

5 0

Answer: x=−3

Step-by-step explanation: Let's solve your equation step-by-step.

(3x+9)=−2(2x+6)

Step 1: Simplify both sides of the equation.

(3x+9)=−2(2x+6)

(

)(3x)+(

)(9)=(−2)(2x)+(−2)(6)(Distribute)

2x+6=−4x+−12

2x+6=−4x−12

Step 2: Add 4x to both sides.

2x+6+4x=−4x−12+4x

6x+6=−12

Step 3: Subtract 6 from both sides.

6x+6−6=−12−6

6x=−18

Step 4: Divide both sides by 6.

−18

x=−3

vekshin13 years ago

4 0

2x+6=-4x-12
2x+4x=-12-6
6x=-18
X=-18/6
X=-3

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Scrat [10]

Answer:

x=36

Step-by-step explanation:

6 0

3 years ago

Химический элемент является простым веществом.

amm1812

A chemical a element js a specific kind of atom

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3 years ago

Cally wants to coat her driveway with a winter sealer. Her driveway is 18 feet long and shaped like a trapezoid. At the garage d

stellarik [79]

Answer:

Amount of Winter sealer for 2 coats[in square feet] = 576 square feet

Step-by-step explanation:

Given:

Length of drive way at garage door = 12 feet

Length of drive way at street = 20 feet

Length of total driveway = 18 feet

Find:

Amount of Winter sealer for 2 coats[in square feet]

Computation:

Amount of Winter sealer for 2 coats[in square feet] = 2[Area of trapezoid]

Amount of Winter sealer for 2 coats[in square feet] = 2[(1/2)(Sum of parallel side)(Height)]

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Amount of Winter sealer for 2 coats[in square feet] = 576 square feet

5 0

2 years ago

Is 4/12more or less than 4/6

11111nata11111 [884]

4/12 is less than 4/6

4/12 = 2/6

and 2/6 < 4/6

5 0

3 years ago

Read 2 more answers

Daniel dives into a swimming pool. The height of his head is represented by the function h(t) = -8t2 - 28t + 60, where t is the

8_murik_8 [283]

So, h(t) is how far is Daniel's head from the surface of the water, namely the surface itself is when the height is nill, so his head is at the surface and the height of it is just 0, thus h(t) = 0. Namely, what is "t" when h(t) is 0?

$\bf h(t)=-8t^2-28t+60\implies \stackrel{h(t)}{0}=-8t^2-28t+60
\\\\\\
0=-2t^2-7t+15\implies 2t^2+7t-15=0\implies (2t+3)(t-5)=0
\\\\\\
\begin{cases}
2t+3=0\implies 2t=-3\implies &t=-\frac{3}{2}\\\\
t-5=0\implies &\boxed{t=5}
\end{cases}$

clearly the seconds cannot be a negative unit, so is not -3/2.

6 0

3 years ago

2/3 (3x+9)=-2 (2x+6)​

2/3 (3x+9)=-2 (2x+6)