Step-by-step explanation:
2/5×7500
2×1500
3000
RM=3000
6.4x + 2.8y = 44.4
6.4(3) + 2.8y = 44.4
19.2 + 2.8y = 44.4
-19.2 -19.2
2.8y = 25.2
------ ------
2.8 2.8
y = 9
Answer:
Kinda confusing but, I think it is
a=7
b=9
c=19
d=7
sorry it took a while it was confusing and plz give brainliest
Step-by-step explanation:
Answer: x-3y+21=0
Step-by-step explanation:
move the constant to the left then divide both sides then booom