7c+ 12= -4c+ 78
⇒ 7c+ 4c= 78 -12 (inverse operation)
⇒ 11c= 66
⇒ c= 66/11 (inverse operation)
⇒ c= 6
Final answer: c= 6.
Answer:
x = -3
Step-by-step explanation:
-7X + 6= 27
Subtract 6 from each side
-7x +6-6 = 27 -6
-7x = 21
divide each side by -7
-7x/-7 = 21/-7
x = -3
Answer:
(a)
(b)
Step-by-step explanation:
We are required to write an equivalent expression that uses only addition for each of the given term.
Note that the product of + and - is always -.
Therefore:
(a)20−9+8−7
(b)4x−7y−5z+6
First, solve the parenthesis
-8 + 6 = -2
-3[5 - (-2)]
Note that two negatives = one positive
-3[5 - (-2)] = -3[5 + 2]
Simplify. Solve the bracket
-3[5 + 2] = -3[8]
Simplify. Multiply to get the answer
-3 x 8 = -24
-24 is your answer
hope this helps
Answer:
B: 8:14
Step-by-step explanation:
Its because there are 8 yellow one out of 14 blue ones pls mark me brainliest