Question

Select steps that could be used to solve the equation 1 + 3x = -x + 4.

A.subtract 1, add x, divide by 4
B.add x, subtract 4, divide by 4
C.add x, subtract 1, divide by 4
D.subtract 3x, subtract 4, divide by -4
E.subtract 3x, subtract 4, divide by 4

(More than one answer)

Answer 1

A, C & D

Explanation:

A) 1 + 3x = -x + 4 {subtract 1}

1 + 3x -1 = -x + 4 - 1

3x = -x + 3 {add x}

3x + x = -x + 3 + x

4x = 3 {Divide by 4}

4x/x = 3/4

x = 3/4

C) 1 + 3x = -x +4 {Add x}

1+ 3x + x = - x +4 + x

1 + 4x = 4 {subtract 1}

4x = 4 - 1

4x = 3 {Divide by 4}

D) 1 + 3x = -x + 4 { Subtract 3x}

1 = -x + 4 -3x

1 = -4x + 4 Subtract 4}

1 - 4 = -4x

-3 = -4x {Divide by -4}

-3/-4 = x

x = 3/4

x = 3/4