I think its (3-3) so i don't think its true
Answer:
7(1+3)
Step-by-step explanation:
Answer:
x=3, y=-1
Step-by-step explanation:
We are already given an equation solved for x, making substitution much easier. We know x=4y+7, meaning we can put 4y+7 whenever we see x in the second equation
2x-6y=12
We substitute 4y+7 in place of x
2(4y+7)-6y=12
Now we only have one variable to work on, distribute the 2
8y+14-6y=12
Combine similar terms, 8y-6y=2y
2y+14=12
Subtract 14 from both sides
2y=-2
y=-1
Now we plug in -1 for y in the first equation to find x
x=4(-1)+7
x=-4+7
x=3
Step-by-step explanation:
19-4c=17
19-17=4c
2=4c
2/4=c
therefore, c=1/2
Answer:
x = 11
Step-by-step explanation:
distribute: 4x - 28 = 27 - x
add x to both sides: 5x - 28 = 27
add 28 to both sides: 5x = 55
divide 5 to both sides: x = 11
