lujainabbas324 lujainabbas324 08-04-2021 Mathematics contestada Work out the answers of the following: 1) −2 - 7 + 4= 2)−20 + 11 − 6= 3)−5 + 14 − 8= 4)−13 − 4 + 6= 5)−30 − 80 + 40= HELPPP PLEEEAAAASSSSEEE!!!! :(