THIS IS 6TH GRADE please help me! thanks

2 answers:

8 0

Answer:

Step-by-step explanation:

Y_Kistochka [10]3 years ago

4 0

Answer:

Step-by-step explanation:

-7,13

You set the equation in two cases

1) x-3=10

2) x-3=-10

than you solve.

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Alona [7]

Answer: B.

It grows 3 inches per week

3 0

3 years ago

Arisa [49]

Keep in mind that you can gather only like terms. Two terms can be summed/subtracted if they involve the same powers of the same variables.

So, going point by point:

We can subtract the terms, because they both involve the variable $b$ , and we have $3b-7b = (3-7)b = -4b$
We can sum the terms, because they all involve the variable $a$ , and we have $a+a-5a = (1+1-5)a = -3a$
We can't sum this terms: 3 is a pure number, while 3r involves the variable r.
We can only sum the two terms: we have $7t-8t-8 = (7-8)t-8 = -t-8$
We can't sum this terms: -20 is a pure number, while -15p involves the variable p.
We can sum the terms, because they all involve the variable $g$ , and we have $-g-g-g = (-1-1-1)g = -3g$