State true or false:
x+7=9⇒x=9-7
We have, x+7=9
⇒x=9-7
Thus, x+7=9⇒x=9-7 is a true statement.
State, True or False :
(i) x<−y ⇒ −x>y
(ii) −5x≥15 ⇒ x≤−3
(iii) 2x≤−7 ⇒ 2x−4≥−7−4
(iv) 7>5 ⇒ 17<15
1x−7=x7. State whether true or false.
Question 42
State whether the following statement is true (T) or false (F).
If 158−7x=9, then −7x=9+158.