3.14 = 7× - 2y slove for y

y = -0.2243

OR

y = - 1.57

Step-by-step explanation:

Step 1 - simplify the equation:

7* -2y = -14y

3.14 = -14y

Step 2 - Divide both sides of the equation by -14:

-0.2243 = y

Or if the equation contains two variables (3.14 = 7x - 2y):

Step 1 - Add 2y to both sides of the equation

3.14 + 2y = 7x - 2y + 2y

3.14 + 2y = 7x

Step 2 - Subtract 3.14 from both sides of the equation:

3.14 + 2y - 3.14 = 7x - 3.14

2y = 7x - 3.14

Step 3  - Divide both sides of the equation by 2:

y =  \frac{7x}{2}  - 1.57

Hope this helps!

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°

i use my brain for prombles like this maybe you could try it

step-by-step explanation: