Due today do not understand i will mark
what is the justification for each step in the solution of the equation?
fill in the empty boxes with the justification.

15x – 8 = −6 (2+8x) + 42

15x – 8 = −6 (2+8x) + 42 given
15x – 8 = −12 − 48x + 42 a.
15x − 8 = 30 − 48x b.
63x – 8 = 30 addition property of equality
63x = 38 c.
x = 38/63 division property of equality

answer

a,b, and d

explanation

a reflection angle is more than

but less than;

an angle that measures

is a reflex angle.(true)

an angle that measures less than

is acute.(true)

provided we are considering angles greater or equal to zero.

an acute angle lies in the range.

an obtuse angle is less than 180° but more than 90°

an angle that measures 300° is obtuse (false)

an angle that measures 65° is an acute angle.(true)

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18

24 units

step-by-step explanation: