If you mean by x over 4 that it is fraction then there is no different between it and divisions x/4 = -120 x = -120 × 4 ( when division goes to the other side of equal it turns into multiplication) x = -480
Area of a circle is π*r² sub what we're given 49π= πr² 49π= π*r² r²= 49π/π r²=49 r=7 The diameter is twice the radius therefore the diameter is 14 units
