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sertanlavr [38]
3 years ago
5

Please could anyone help with this question. thanks 3x-10+4x-20=180

Mathematics
2 answers:
Minchanka [31]3 years ago
8 0
3x-10+4x-20=180
7x -30 = 180
    +30   +30
       7x=210
          x=30

Svetlanka [38]3 years ago
4 0
3x+4x-10-20=180
7x-30=180
7x=210
x=30
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