Use the substitution method to solve the systems of equations. choose the correct ordered pair. 16x-2y=74 2x-2y=4

16x-2y=74

2x-2y=4

Multiply each equation by the value that makes the coefficients of y opposite.

(-1)(16x-2y)=(-1)(74)

2x-2y=4

-16x+2y=-74

2x-2y=4

-14x. -70

Divide -14 both sides

X= -70/-14

X= 5

Now substitute x answer into one original equation to find y.

2x-2y=4

2(5)-2y=4

10-2y= 4

Subtract 10 both sides

-2y= -10+4

-2y= -6

Now divide -2 both sides

Y= -6/-2

Y= 3

So (5,3) is your point answer

Still the correct answer on APEX as of 4/29/19.

m∠cdf = 43° , m∠gdf = 114°, m∠gde = 23°, m∠edh = 23° , m∠cdh = 157°

step-by-step explanation:

since, it is given that de bisects the angle gdh ⇒ de divides the angle gdh into two equal angles.

⇒ m∠gde = m∠edh

⇒ 8·x   - 1 = 6·x + 5

⇒ x = 3

so, m∠gde = 8·x - 1 = 23°

and m∠edh = 23°

now, it is given ∠cde is an straight angle so, m∠cde = 180°

⇒ m∠cdf + m∠fdg + m∠gde = 180°

⇒ 43° + m∠fdg + 23° = 180°

⇒ m∠fdg = 114°

again, m∠cde = m∠cdh + m∠edh = 180°

m∠cdh + 23° = 180°

⇒ m∠cdh = 157°

explanation:

remove parenthesis:

=

apply rule

=

multiply fractions:

=

=

divide:

=

mordancy.