What is the solution to the equation -3a +5=a-3(2a+1)​

the answer is a = -4

Step-by-step explanation:

pls mark brainliest

a = -4

Step-by-step explanation:

To find a, we need to get the variable on one side of the equation. So first we distribute.

-3a+5=a-6a-3 Now we subtract 5 from both sides and add the a to the -6a

-3a=-5a-8 Now we add 5a to both sides

2a=-8 And lastly divide both sides by 2

a= - 4

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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°