Answer:
4 - ( 3x - 8 ) = 21
break the bracket first ,it gives : 4 - 3x + 8 = 21
12 - 3x = 21
- 3x = 21 - 12
- 3x = 9
-x = 9/3
-x = 3
X = - 3
[ check if the answer is correct, put -3 instead of X in the above equation ! we get 4 - { 3(-3) - 8 } = 21
4 - { - 9 - 8 } = 21
4 - { - 17 } = 21
break the bracket, minus and minus will multiply and will become plus , so we have 4 + 17 = 21 , hence 21 = 21 ! therefore X = -3
Answer:
x=771
Step-by-step explanation:
−771 + x = 0
x − 771 = 0
x − 771 + 771 = 0 + 771
Answer:
that looks hard?
Step-by-step explanation:
I would give the answer but there are to many numbers and I don't want you to get confused by the answer I give you
This is called a Supplementary Angle, meaning the angles <em><u>MUST</u></em> add up to 180 Degree.
Angle 1 will be 94 (94-18 = 76).
Angle 2 will be 13 (8x13 = 104).
(Please mark this as the brainliest if this helps!)
