(x+30)+(x-10)=180
649722
798429
898315
409444
7005866
5511820
2036982
9577031
lcm of 0.72,0.64 and 0.968
898315 what next
178754 what next
(100 + 3 - 1) / 3 * 3
5x^2 + 45x + 90 = 0