Question 43
State whether the following statement is true (T) or false (F).
If x3+1=715, then x3=615
False Given, x3+1=715⇒x3=715−1⇒x3=7−1515⇒x3=−815
Question 45
If x11=15, then x=1115.
Question 42
If 158−7x=9, then −7x=9+158.