3 years ago

Evaluate 2a - 7 when a=3

Mathematics

1 answer:

Eddi Din [679]3 years ago

7 0

Answer:

-1

Step-by-step explanation:

Just substitute your variable in:

(2)(3)-7

Simplify:

2*3=6

6-7=-1

-1 is your answer.

-Stay golden :)

You might be interested in

Shari sent a total of 64 text messages to 4 friends. each friend received the same number of text messages. which number

Inga [223]

Each freinds received 16 texts in total

4 0

3 years ago

6 times 7 -3 squared by 2 times 9 +4 squared by 3

timama [110]

I believe that the answer is 25

7 0

3 years ago

Read 2 more answers

SOMEONE CAN HELP ME, I NEED THIS NOW THANK U

saveliy_v [14]

Answer:where's the pic

Step-by-step explanation:

5 0

3 years ago

Solve 2x - 9 - 7x = 11. A. -4 B. -1/4 C.2/5 D. 4

HACTEHA [7]

A. -4

-5x divided by 20 = -4

4 0

3 years ago

Read 2 more answers

It's in the attachment <br> URGENT

maxonik [38]

Step-by-step explanation:

$\frac{2a}{a + b - c} = \frac{2b}{b + c - a} = \frac{2c}{a + c - b} = k \\ \\ by \: theorem \: on \: equal \: ratios \\ \\ \frac{2a + 2b + 2c}{a + b - c + b + c - a + a + c - b} = k \\ \\ \frac{2(a + b + c)}{a + b + c} = k \\ \\ \therefore \: k = 2$

5 0

3 years ago