All categories

3 years ago

8x+4y=-56 can some one show me step by step please

1 answer:

3 0

First rewrite the equation:8x + 4y = -56

Step 1: Add -4y to both sides.
8x + 4y + −4y = −56 + −4y8x = −4y −56

Step 2: Divide both sides by 8.

8x/8 ‌= ‌−4y −568‌/8

Answer:
x=‌−1/2‌ y=−7

You might be interested in

30 x 10 by the power of 2

Charra [1.4K]

Answer:

90,000

Step-by-step explanation:

30*10=300

300 to the second power is the same as 300*300

300*300=90,000

7 0

3 years ago

Read 2 more answers

Find each sum or difference. (W^2 - 4w-1)+(-5+5w^2 - 3w)

inysia [295]

$(w^2-4w-1)+(-5+5w^2-3w)$

Combine like terms:

$w^2-4w-1-5+5w^2-3w$ $w^2+5w^2-4w-3w-1-5$ $6w^2-7w-6$

5 0

1 year ago

4a^2 - 7b + 2ab - a^2 + b

Andrej [43]

Answer:

3a^2 - 6b + 2ab

Step-by-step explanation:

Put all the like terms together

(4a^2 - a^2) - (7b + b) + 2ab

then simplify

(4a^2 - a^2) = 3a^2

(-7b + b) = -6b

then rewrite

3a^2 - 6b + 2ab

3 0

3 years ago

Read 2 more answers

What is the value of the expression

Y_Kistochka [10]

Answer:

0.8

Step-by-step explanation:

We begin with the expression: $0.5+(-\frac{3}{4} )+0.25-(-\frac{4}{5} )$

First, we need to convert the fractions into decimals to make this easier.

$-\frac{3}{4}=-0.75$ and $-\frac{4}{5} =-0.8$

Once we have this, we can simplify it

$0.5-0.75+0.25-(-0.8)\\\\0.5-0.75+0.25+0.8\\\\0.75-0.75+0.8\\\\0.8$

4 0

3 years ago

Which equation would best help solve the following problem?

timurjin [86]

Y = yo + Vot - (gt^2)/2

0 = 0 + 31t - 4.9 t^2

0 = -4.9 t^2 + 31t

Answer: option A.

6 0

3 years ago