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Marina CMI [18]
3 years ago
5

15-z=6 I need help please show work

Mathematics
1 answer:
solniwko [45]3 years ago
4 0

Answer:

z= -9

Step-by-step explanation:

Subtract 15 on both sides, because it is a positive number

15-15=0

6-15=-9

z= -9

Hope this helps!

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Let m = 6x +5.<br> Which equation is equivalent to (6x + 5)^2 – 10 = -18x – 15 in terms of m?
aev [14]

Answer: m² + 3m - 10 = 0

Step-by-step explanation:

From the expression, considering

6x + 5 = m

The original expression

( 6x + 5 )² - 10 = -18 - 15

Factorize the right hand expression,

-18 - 15 = -3( 6x - 15 )

Since m = 6x + 5 , we now substitute for m in that expression

m² - 10 = -3m

Now re arrange the equation in the form,

ax² - bx + c = 0

Now back to the equation,

m² + 3m - 10 = 0,

So the equivalent equation will be

m² + 3m - 10 = 0

7 0
3 years ago
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Vanyuwa [196]

Answer: For a is 19/15 or 1 4/15

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Step-by-step explanation:  add 3/5 and 2/3

you will get 19/15. In mixed fraction is 1 4/15

4 0
3 years ago
Read 2 more answers
How do I solve for X if I have something like this?<br>(x+2)(1-x)= -4
lakkis [162]

(x+2)(1-x)=-4

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subtract: -x=2

switch the negatives

x=-2

3 0
3 years ago
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Sergeeva-Olga [200]

Answer:

im going to guess  around either -4 q or 0 due to the hint the question

Step-by-step explanation:

8 0
3 years ago
if you get it right and you are the first one than i will give you all stars and thanks and a crown but if you are just right th
Ganezh [65]

Answer:

Periodic Table

Step-by-step explanation:

? that should be it.

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