Question

1. Solve |2 - 3x| = 7.

A. {-15, 3}
B. {-3, 15}
C. {-3, 5/3}
D. {-5/3, 3}

Solve the equation for y: 4x + 3y = -12.
A. y = -4 + 4x
B. y = -4 - 4/3 x
C. y = -12 + 4x
D. y = -12 - 4/3 x

Solve the equation for m: A = 2(m - w).
A. m = (A + w)/2
B. m = 2(A + w)
C. m = A + w/2
D. m = A/2 + w

Answer 1

1.
for |a|=b assume a=b and a=-b

|2-3x|=7 solve
2-3x=7 and 2-3x=-7
minus 2 both sides
-3x=5 and -3x=-9
divide both sides by -3
x=-5/3 and x=3
D


2. minus 4x both sides and divide by 3
y=-4/3x-4
B

3.
divide both sides by 2 and add w to both sides
A/2+w=m
D


1.D
2.B
3.D
distribute, add 2w to both sides and divide by 2