Question

Solve for x and y.
x + 4 = 2y
x – 7 = 3

Answer 1

might as well use yahoo for answers

Answer 2

is there no y in the second one?

Answer 3

\[x + 4 = 2y\\
x – 7 = 3\] or \[x + 4 = 2y \\x – 7y = 3\]

Answer 4

x-7=3
add 7 to both sides:
x=10
x + 4 = 2y
substitute 10 in where x is:
10+4=2y
so,14=2y
then, divide both sides by 2
7=y

Answer 5

so x=10 and y=7