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3 years ago

How many solutions does this equation have? (15x + 21) / 3 = 5x + 7

Mathematics

1 answer:

Lesechka [4]3 years ago

7 0

Answer:

3*(5*x-7)-(15*x-21)=0

Step-by-step explanation:

3 • (5x - 7) - (15x - 21) = 0

Step 2 :

Equation at the end of step 2 :

0 = 0

Step 3 :

Equations which are always true :

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The function g is defined by g(x) = x² +4.<br> Find g(5n)

jasenka [17]

Answer:

g(5n)=5n^2+4

Step-by-step explanation:

Substitute 5n for x

5n^2+4

You can't really do much with this so that is the answer

7 0

3 years ago

Simplify to create an equivalent expression. 2(−n−3)−7(5+2n)

scoray [572]

First you distribute...
-2n - 6 - 35 - 14n
Then you simplify...
-16n - 41
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3 years ago

How do you mutiply 726 times 5

Neko [114]

726 times 5 is...
726 x 5 = 3630

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3 years ago

Bonnie is four years older than Clyde.

Doss [256]

Answer:

Bonnie's age is 18

Step-by-step explanation:

Let

x ----> Bonnie's age

y ---> Clyde's age

we know that

$x=y+4$ ----> equation A

$x-10=2(y-10)$

$x-10=2y-20$

$x=2y-20+10$

$x=2y-10$ ----> equation B

substitute equation A in equation B

$y+4=2y-10$

Solve for y

$2y-y=4+10$

$y=14$

<em>Find the value of x</em>

$x=14+4=18$

therefore

Bonnie's age is 18

Clyde's age is 14

7 0

3 years ago

Please helpppppppppppppppp

Zina [86]

Answer:

29520728184915396206153835295

3 0

3 years ago