Solve the following equations. Make sure you show each step of the work including any Distributive Property, Inverse operations and co

Question

Solve the following equations. Make sure you show each step of the work including any Distributive Property,
Inverse operations and combining/collecting of like terms that may be needed. Remember that what you do to
one side you must do to the other when using inverse equations. Label your response with the same letter of the
problem AND write the original problem first before you begin to solve.
A) 1d + 12 = 14-20
B) 4(20+5) = 10r
C) -2(5 + x) – 1 = 3(x + 3)

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Jezebel 5 months 2021-08-30T07:20:37+00:00 1 Answers 3 views 0

Answers ( )

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    2021-08-30T07:22:36+00:00

    Answer:

    A) -18 B) r=10 C) x=-4

    Step-by-step explanation:

    A) 1d + 12 = 14-20

    Step 1: Simplify both sides of the equation.

    1d+12=14−20

    d+12=14+−20

    d+12=(14+−20)(Combine Like Terms)

    d+12=−6

    d+12=−6

    Step 2: Subtract 12 from both sides.

    d+12−12=−6−12

    d=−18

    Answer:

    d=−18

    B) 4(20+5) = 10r

    Step 1: Simplify both sides of the equation.

    100=10r

    Step 2: Flip the equation.

    10r=100

    Step 3: Divide both sides by 10.      

    r=10

    C) -2(5 + x) – 1 = 3(x + 3)

    Step 1: Simplify both sides of the equation.

    −2(5+x)−1=3(x+3)

    (−2)(5)+(−2)(x)+−1=(3)(x)+(3)(3)(Distribute)

    −10+−2x+−1=3x+9

    (−2x)+(−10+−1)=3x+9(Combine Like Terms)

    −2x+−11=3x+9

    −2x−11=3x+9

    Step 2: Subtract 3x from both sides.

    −2x−11−3x=3x+9−3x

    −5x−11=9

    Step 3: Add 11 to both sides.

    −5x−11+11=9+11

    −5x=20

    Step 4: Divide both sides by -5.

    x=−4

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