2(-3x + 7)-4 I NEED HELP PLEASE

Mathematics

2 answers:

horrorfan [7]3 years ago

5 0

Answer:

-6x+10

Step-by-step explanation

1st you have to multiply 2 times everything in the ()

2nd you should get -6x+14-4

then you subtract 4 from 14 to get -6x+10

balu736 [363]3 years ago

3 0

Answer:

Step-by-step explanation:

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scoray [572]

Answer: B

Step-by-step explanation:

7 0

3 years ago

Solve 10x + 16 2 6x + 20.<br> A. x29<br> B. x=9<br> c. x=1<br> D. x21

Nadusha1986 [10]

An equation is formed of two equal expressions. The value of x for which the equation has a solution is 1.

<h3>What is an equation?</h3>

An equation is formed when two equal expressions are equated together with the help of an equal sign '='.

The solution for 10x+16=6x+20 is,

10x + 16 = 6x + 20

10x - 6x = 20 - 16

4x = 4

x = 1

Hence, the value of x for which the equation has a solution is 1.

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5 0

2 years ago

√3=1.732 find the value of√75+1/2√48-√198

Nookie1986 [14]

Answer:

12.124-3 $\sqrt{22}$

Step-by-step explanation:

$\sqrt{75} = \sqrt{5^{2}*3} \\$

$\sqrt{48}= \sqrt{2^{2}*2^{2}*3} \\$

$\sqrt{198} =\sqrt{3^{2}*2*11} \\$

$\sqrt{75} +\frac{1}{2} *\sqrt{48} - \sqrt{198} \\\\\sqrt{5^{2}*3} +\frac{1}{2} *\sqrt{2^{2}*2^{2}*3} - \sqrt{3^{2}*2*11} \\\\5\sqrt{3} +\frac{1}{2} *4 \sqrt{3} - 3 \sqrt{2*11} \\\\5\sqrt{3} +2 \sqrt{3} - 3 \sqrt{22} \\\\5*1.732 +2*1.732 - 3 \sqrt{22} \\\\8.66 + 3.464 - 3 \sqrt{22}\\\\12.124- 3 \sqrt{22}$