3 years ago

Which represent the solutions

Mathematics

1 answer:

givi [52]3 years ago

8 0

That looks hella hard

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How to solve -4{1-2x}-1=7x

mina [271]

Answer:

Step-by-step explanation:

$-4(1-2x)-1=7x\qquad\text{use the distributive property}\ a(b+c)=ab+ac\\\\(-4)(1)+(-4)(-2x)-1=7x\\\\-4+8x-1=7x\qquad\text{combine like terms}\\\\8x+(-4-1)=7x\\\\8x-5=7x\qquad\text{add 5 to both sides}\\\\8x-5+5=7x+5\\\\8x=7x+5\qquad\text{subtract}\ 7x\ \text{from both sides}\\\\8x-7x=7x-7x+5\\\\x=5$

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3 years ago

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7k÷3=21. What is the value of k?

viva [34]

7k/3 = 21
x 3 x3
7k = 63
/7 /7
k = 9
(7(9)/3 = 21 = 63/3 = 21 = 21 = 21)

5 0

3 years ago

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HELP HELP HELP PLS SOMEBODY PLS

Elodia [21]

Answer:

A) Both estimates are slightly larger, so it is reasonable.

Step-by-step explanation:

Since 1/2 = 5/10

And 1/5 = 8/40

<u>Both estimates are larger</u>

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3 years ago

Solve for x in the equation x²-12x+59=0

lyudmila [28]

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