Answer:
17.) x = 2
Step-by-step explanation:
x + 7 = 9 perform APE
you'll subtract -7 in both sides
because its linear equation they should be equal
x + 7 + (-7) = 9 + (-7) so this is what'll happen
and then add the like terms
so the answer is:
X = 2
because 7 + (-7) is like 7 - 7 and 9 + (-7) is like 9 - 7 so that this happens
hope it helps
