(-1)*(+8)
b+c
20 ÷ 5 × 2 + (2 − 3)
a=b+c
83872317478507912464179
1283392.5839
1263507.7925
1309336.751
1284314.8959
1334647.444
1285859.9548
Simplify $\frac{2x^2-5x-12}{4x^2-9}$
x/7-4=x/8+5
x/7-4=x/8=5
c+a+b
