CALCULE O VALOR DE =
1) 2×+3=15
2) 7×-1=13
3) 2×-4=3
4) 4×+2=-18
5) 10×+1=-4-5
6) 5×-2=7+6
7) 9×=18
8) 7×=0
9) 48×=12
10) 35×=-105
Pfvr me respondam preciso de ajuda
Soluções para a tarefa
Resposta:
1) x=6
2) x=2
3) x=7/2 ou x=3,5
4) x=-5
5) x=-1
6) x=3
7) x=2
8) x=0
9) x=1/4 ou x=0,25
10) x=-3
Explicação passo-a-passo:
Resposta:
1) 2x + 3 = 15
2x = 15 - 3
2x = 12
x = 12/2
x = 6
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2) 7x - 1 = 13
7x = 13 + 1
7x = 14
x = 14/7
x = 2
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3) 2x - 4 = 3
2x = 3 + 4
2x = 7
x = 7/2
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4) 4x + 2 = -18
4x = -18 - 2
4x = -20
x = -20/4
x = -5
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5) 10x + 1 = 4 - 5
10x = 4 - 5 - 1
10x = -1 - 1
10x = -2
x = -2/10
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6) 5x - 2 = 7 + 6
5x = 7 + 6 + 2
5x = 13 + 2
5x = 15
x = 15/5
x = 3
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7) 9x = 18
x = 18/9
x = 2
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8) 7x = 0
x = 0/7
x = 0
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9) 48x = 12
x = 12/48
============================================================
10) 35x = -105
x = -105/35
x = -3