Expressões Algébricas Fracionárias (HELP)?
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Determine o valor de x nas equações.
1) x/2 + x = 30
2)x+1/3 = 15
3)3x/2 + 2x/3 + 4x/4 = 12
4) 6x/3 + 4x/4 = 24
5) x/3 + x/2 + x/5 = 15
6)3x/2 + 4x/5 = 20
7) 8x+ 20x= 280
8) 70x + 3/4x = 20
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Verified answer
1)x+2x=60
3x=60
x=60/3
x=20
3)24x+8x=288
32x=288
x=288/32
x=9
5)10x+15x+6x=450
31x=450
x=450/31