0.3(4x-8)-0.5(2.4x+4)
1.2x-2.4-1.2x+2
x-0.4
6v-5/8=7/8
6v=12/8
v=12/8÷6
v=.25
Answer:
n + 3m
Step-by-step explanation:
It will become 1/2 * 2n + 1/2 * 6m = n + 3n
3x+2y=22
3x-2y=2
we add these to equations together
6x=24
x=4
then we plug in x to find y
3*4+2y=22
12+2y=22
2y=10
y=5
solution is (4,5) (x=4 and y=5)