3 years ago

8 = 4 - 2x - 2x +5 = 17 12= - 3 ( x+ 5)

1 answer:

max2010maxim [7]3 years ago

5 0

$8 = 4 - 2x\\8 + 2x = 4\\2x = -4\\x = -2$

$- 2x +5 = 17\\-2x =12\\x = -6$

$12= - 3 ( x+ 5)\\12 = -3x -15\\-3x =27\\x= -9$

You might be interested in

A gardener planted 35 strawberry plants and each of 19 rows how many strawberry plant did

Delicious77 [7]

The gardener planted 665 strawberries

4 0

3 years ago

Read 2 more answers

The points (–8, –4) and (6, 10) fall on a particular line. What is its equation in slope-intercept form?

elena55 [62]

First we need to use two point to find the slope (m)

m=(y2-y1)/(x2-x1)
X1=-8
Y1=-4
X2=6
Y2=10

m=(10-(-4))/(6-(-8))
m=(10+4)/(6+8)
m=14/14
m=1

Eq of the line formula :
Y-y1=m(x-x1)
Y-(-4)=1(x-(-8))
Y+4=x+8
Y=x+4

6 0

3 years ago

What 2 numbers whose sum is 35, and whose difference is 13

lbvjy [14]

24+11=35
24-11=13
so it's 24 & 11

7 0

3 years ago

Y=5-2x<br> what is y equals five minus two x

sveta [45]

Its already simplified... you dont have a term for Y or X so it is already simplified

3 0

3 years ago

Just number 23 super confused

vodka [1.7K]

Answer:

x = -7

Step-by-step explanation:

This is an exponential equation.

$\frac{1}{2}^x=128$

We need to take log(or ln) of both sides and use logarithm property to solve this.

So, let's take ln of both sides, so we have:

$ln(\frac{1}{2}^x)=ln(128)$

Now, we will use this property shown below to further simplify:

$ln(a^b)=bln(a)$

So, we now have:

$ln(\frac{1}{2}^x)=ln(128)\\xln(\frac{1}{2})=ln(128)\\x=\frac{ln(128)}{ln(\frac{1}{2})}\\x=-7$

The value of x is -7

6 0

3 years ago