Need help with this question!!! Pls explain!!! 3=-(4x+7)+3x

Question

Need help with this question!!!
Pls explain!!!

3=-(4x+7)+3x

in progress 0
Dulcie 1 week 2021-07-21T21:45:36+00:00 1 Answers 2 views 0

Answers ( )

    0
    2021-07-21T21:47:31+00:00

    Answer:

    x=-10

    Step-by-step explanation:

    3=-(4x+7)+3x

    move all terms to the left:

    3-(-(4x+7)+3x)=0

    calculate terms in parentheses: -(-(4x+7)+3x), so:

    -(4x+7)+3x

    add all the numbers together, and all the variables

    3x-(4x+7)

    get rid of parentheses

    3x-4x-7

    add all the numbers together, and all the variables

    -1x-7

    Back to the equation:

    -(-1x-7)

    get rid of parentheses

    1x+7+3=0

    add all the numbers together, and all the variables

    x+10=0

    move all terms containing x to the left, all other terms to the right

    x=-10

Leave an answer

Browse

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