Answer:
-12
Step-by-step explanation:
−2.5+(−7.4)−(−1.2)−(+3.9)+(+0.6)
Subtracting a negative is adding
−2.5+(−7.4)+(1.2)−(+3.9)+(+0.6)
Combine like terms
-9.9 +(1.2)−(+3.9)+(+0.6)
-8.7-3.9+.6
-12.6+.6
rewrite the problem. Remember that two minus signs negate each other and become a plus sign and minus signs override plus signs:
-2.5-7.4+1.2-3.9+0.6 = -12
