Answer:
do you still need this answered?
Step-by-step explanation:
Answer:
No
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Multiply through by 7:-
3x - 14 = 105
3x = 119
x =119/3 = 39 2/3
is equivalent to 
Option D is correct option
Step-by-step explanation:
We need to find the equivalent to the given expression:
To solve the expression multiply 7 with the terms inside the bracket
So, is equivalent to
Option D is correct option
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Keywords: Complex Numbers
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Answer:
A = 50
Step-by-step explanation:
The sum of the angles of a triangle is 180 degrees
A+B+C =180
2x-10 + 70 + x+30 = 180
Combine like terms
3x +90 = 180
Subtract 90 from each side
3x +90-90 = 180-90
3x= 90
Divide each side by 3
3x/3=90/3
x =30
We want to find A
A =2x-10
= 2*30 -10
=60-10
=50
