9x+15+6x+24x=39x+15 ...i first distrubuted 3 to the parantheses
Answer:
y=-2
x=4
Step-by-step explanation:
4x+y=14
x-2y=8 then x=8+2y
substitute for x in 4x+y=14
4(8+2y)+y=14
32+8y+y=14
reduce
32+9y=14
32+9y-32=14=32
9y=-18
9y/9=-18/9
y=-2
x=8+2(-2)=4
You have to do 5+5 cross them out then add 5+5 on the other side, bring y down and your answer is y<10 x
For the second one, you do 2-2 which is 0 so your answer would be y
X=number of bags of peanuts.
y=number of cups of lemonade.
We suggest this system of equations.
0.35x+0.75y=7.05
y=x+5
solve by substitution method.
0.35x+0.75(x+5)=7.05
0.35x+0.75x+3.75=7.05
1.1x=7.05-3.75
1.1x=3.3
x=3.3/1.1=3
y=x+5
y=3+5=8
Answer:
8 cups of lemonade