Whats 7(×+4)=8×+31 with work thats shown ?

x = -3

Step-by-step explanation:

First you need to distribute the 7 to (x + 4):

7x + 28 = 8x + 31

Then subtract 7x from both sides, making it cancel out on the left since 7x - 7x cancel each other out.

7x + 28 = 8x + 31

-7x          -7x

28 = x + 31

Then subtract 31 from both sides, making it cancel out on the right side:

28 = x + 31

-31        - 31

-3 = x

X= 3

Step-by-step explanation:

7(x+4)=8 x+31

7 x+28= 8 x+ 31          (move the 8 x over to subtract it from 7 x)

                                   (move the 28 over to subtract it from 31)

Hope This Helps

30 units^2

step-by-step explanation:

area is l × w

the length is 3

and the width is 10

3 × 10= 30 units squared