1) What are the x’s in 2 (3x + 1) = x + 22? 2) What are the x’s in 2x + 2 = x + 5? 3) What are the x’s in 3x + 2x = 10?

Question

1) What are the x’s in 2 (3x + 1) = x + 22?
2) What are the x’s in 2x + 2 = x + 5?
3) What are the x’s in 3x + 2x = 10?

I really don’t know these.

in progress 0
Edana Edana 4 years 2021-08-10T09:04:29+00:00 2 Answers 8 views 0

Answers ( )

  1. Amity
    0
    2021-08-10T09:06:14+00:00
    Reply

    1. x=4 2(3{4}+1)={4}+22
    2. x=3 2(3)+2=(3)+5
    3. x=2 3(2)+2(2)=10

  2. thuthuy
    0
    2021-08-10T09:06:20+00:00
    Reply

    2(3x + 1) = x + 22
    6x + 2 = x + 22
    -1x -1x
    5x + 2 = 22
    -2 -2
    5x=20
    /5 /5
    X=4

    2x + 2 = x + 5
    -x -x
    3x + 2 = 5
    -2 -2
    3x = 3
    /3 /3
    X=1

    3x + 2x = 10
    5x=10
    /5 /5
    X=2

Leave an answer

Browse

Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )