-2(1+2x)=7-x 7th grade

Mathematics

2 answers:

Brut [27]3 years ago

5 0

-2(1+2x)=7-x
-2-4x=7-x
-2=7+3x
-9=3x
X=-3

Blababa [14]3 years ago

3 0

-2(1+2x)=7-x
-2(1)=-2 -2(2x)=-4x rewrite
-2-4x=7-x combine like terms add two to both sides 7+2=9; add x to both sides -4x+x=-3x rewrite -3x=9 divide -3 from both sides 9/-3=-3 rewrite
X=-3
Hope this helps have a nice day!

You might be interested in

Factor Completely: 6x2 + 28x - 10

NikAS [45]

3x -1
2x 10
(3x-1)(2x+10) = 2(3x-1)(x+5)

7 0

3 years ago

Calculate 0.1 x 60?<br>quickly help please

liubo4ka [24]

Answer:

Step-by-step explanation:

5 0

3 years ago

Find the explicit formula for the general nth term of the arithmetic sequence described below. Simplify the formula and reduce a

NemiM [27]

Answer:

an = 4/3n - 13/3.

Step-by-step explanation:

The first term is a1,

a24 = a1 + 23d

83/3 = a1 + 4/3* 23

a1 = 83/3 - 92/3

a1 = -9/3 = -3.

So the nth term an = -3 + 4/3(n - 1)

an = -3 + 4/3 n - 4/3

an = 4/3n - 13/3

6 0

4 years ago

A line with a slope of 4 passes through the points (8,7) and (7,p). What is the value of p

gayaneshka [121]

Answer:

$p=3$

Step-by-step explanation:

There are multiple ways to solve this, but since two points are provided (8,7) and (7,p) and the slope is also given (m=4), we can use the formula for the slope.

$m = \dfrac{y_2-y_1}{x_2-x_1}$