2x+3 (x+10)=380

Question

2x+3 (x+10)=380

Comments

а)5 (x+2)-6 (x-2)=5б)3 (8x-6)=4 (6x-4,5)

Answer 1

2x+3(x+10)=380, 2x+3x+30=380, 5x=350, x=70.

Comments

а)5 (x+2)-6 (x-2)=5
б)3 (8x-6)=4 (6x-4,5)

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a) 5x+10-6x+12=5, -x=-17, x=17