Question

5(×-8)+7(×-3)=15-20

7(×-2)+2(×-7)=12-9

4×-2+5×=2×-3×​




ayúdenme a resolver con explicación xfavor

Answer 1

5(×-8)+7(×-3)=15-20

5x-40+7x-21=-5

12x-61=-5

12=-5+61

12x=56

x = 14/3 = 4,6

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7(×-2)+2(×-7)=12-9

7x-14+2x-14=3

9x-28=3

9x=3+28

9x=31

x = 31/9 = 3,4

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