Find the value that makes the equation 2d + 4 = 12 true.
2 answers:
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15−2x−8−3x=−x−12+4x+43
now combine all the like terms on each side.
Add -2x and -3x
subtract 15 and -8....you subtract because the sign are different
now do the same for the other side
−5x+7=−x−12+4x+43
−5x+7=3x+31
bring the x value from the right side to the left side.
−5x+7−3x=31
combine like terms on left side
−8x+7=31
now move +7 to the right side which become..
−8x=−7+31
−8x=24
we will need to single out X by dividing
answer: X= -3
now combine all the like terms on each side.
Add -2x and -3x
subtract 15 and -8....you subtract because the sign are different
now do the same for the other side
−5x+7=−x−12+4x+43
−5x+7=3x+31
bring the x value from the right side to the left side.
−5x+7−3x=31
combine like terms on left side
−8x+7=31
now move +7 to the right side which become..
−8x=−7+31
−8x=24
we will need to single out X by dividing
answer: X= -3
Answer:
AED and BEC, AEB and DEC i hope this helps! :)
Step-by-step explanation:
there are 2 sets of vertical angles shown in this picture
1st one is AED and im guessing its a C so...BEC
and the 2nd pair is AEB and DEC
they are both angles that are diagonal to each other.
AED is 62 degrees BEC is 62 degrees
AEB is 118 degrees DEC is 118 degrees
