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2 years ago

Solve 5x-7x6=7x+6=-2(x-3)

Mathematics

1 answer:

Nata [24]2 years ago

3 0

Answer:

i cannot tell where the seperate numbers are and where the x is multiplication and what numbers are negative. post it agian but put spaces in beetween.

Step-by-step explanation:

remember:

PEMDAS

P- parenthases

E- exponents

M- multiplication

D- division

A- addition

S- subtraction

note:

M, D are tied so do it left to right

A, S are tied so do them left to right

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Use the Distributive Property to expand the expression -(u-v)

deff fn [24]

Answer:

(U+V) is the answer to the solution

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2 years ago

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scoray [572]

Ah, thank you. your question truly made the most of sense.

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2 years ago

What is 1/5 of 1/2 of 1/4 of 152?

Alona [7]

1/5 of 152 is 30.4
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4 0

3 years ago

Read 2 more answers

5(2n - 4) = 9(n + 2)

Wewaii [24]

1. Distribute
5(2n-4)
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9(n+2)
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2. Combine like terms
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Hope this helps!

8 0

2 years ago

The product of (3 − 4i) and____is 25.

LiRa [457]

$(3-4i)(a+bi)=25\qquad\text{use FOIL method}\\\\(3)(a)+(3bi)+(-4i)(a)+(-4i)(bi)=25+0i\\\\3a+3bi-4ai-4bi^2=25+0i\\\\3a+3bi-4ai-4b(-1)=25+0i\\\\3a+3bi-4ai+4b=25+0i\\\\(3a+4b)+(3b-4a)i=25+0i\\.\qquad\qquad\qquad\qquad\Downarrow\\\\3a+4b=25\ and\ 3b-4a=0\\\\3b-4a=0\qquad\text{add 4a to both sides}\\\\3b=4a\qquad\text{divide both sides by 3}\\\\b=\dfrac{4}{3}a\qquad\text{substitute it to the first equation}\\\\3a+4\left(\dfrac{4}{3}a\right)=25\\\\3a+\dfrac{16}{3}a=25\qquad\text{multiply both sides by 3}$

$9a+16a=75\\\\25a=75\qquad\text{divide both sides by 25}\\\\\boxed{a=3}\qquad\text{put the value of a to}\ b=\dfrac{4}{3}a:\\\\b=\dfrac{4}{3}(3)\\\\\boxed{b=4}\\\\Answer:\ \boxed{(3-4i)\underline{(3+4i)}=25}$

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3 years ago