25=
[{50 divided by 5} plus 3]times 2 -1=25
Answer:
A
Step-by-step explanation:
since both equations express y in terms of x we can equate the right sides
x + 7 = - 2x + 19 ( add 2x to both sides )
3x + 7 = 19 ( subtract 7 from both sides )
3x = 12 ( divide both sides by 3 )
x = 4
substitute x = 4 into either of the 2 equations for y
y = x + 7 ⇒ y = 4 + 7 = 11
solution is (4, 11 )
1. 5x-y=4
2. -4/3+1/3y-2/3z
3. x=5+1/2y -3/2z
And/or the answer to the whole thing could be that the statement is incorrect.