4. 8×X+9. 8×X-0. 008=62. 7

Question

4. 8×X+9. 8×X-0. 008=62. 7

Answer 1

8х+9.8х-0.008=67.2
17.8х-0.008=67.2
17.2х=0.008+67.2
17.2х=67.208
х=67.208/17.2
х=3.8

Comments

=62. 7!

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4. 8!