Resolva as equações:A) 7x+48= 4x-10 B) -x-5+4x= -7x+6x+15 C) 2(x+5) -3 (5-x)=10 E) x/2 + 3/5x=6
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A) 7x+48=4x-10
7x-4x=-10-48
3x=-58
x=-58/3 x=-19,333...2
B)-x-5+4x=-7x+6x+15
-x+4x+7x-6x=15+5
4x=20
x=20/4 x=5
C)2(x+5)-3(5-x)=10
2+5x-3+4x=10
5x+4x=10-2+3
9x=11
x=11/9 x=1,222...
E)x/2+3/5x=6
x/2+3/5x=6,x=0
x/2+3/5x-6=0
5x²+6-60x/10x=0
5x²+6-60x=0
5x²-60x+6=0
x=-(-60)+-√¯(-60)²-4.5.6/2.5
x=60+-√¯3600-120/10
x=60+-√¯3480/10
x=60+-2√¯870/10
x=60+2√¯870/10
x=60-2√¯870/10
x=30+√¯870/5
x=30-√¯870/5, x=0: o igual é riscado.
x=30+√¯870/5
x=30-√¯870/5
x=30-√¯870/5, x =30+√¯870/5
¹ ²
Espero ter Ajudado! Boa Noite!
7x-4x=-10-48
3x=-58
x=-58/3 x=-19,333...2
B)-x-5+4x=-7x+6x+15
-x+4x+7x-6x=15+5
4x=20
x=20/4 x=5
C)2(x+5)-3(5-x)=10
2+5x-3+4x=10
5x+4x=10-2+3
9x=11
x=11/9 x=1,222...
E)x/2+3/5x=6
x/2+3/5x=6,x=0
x/2+3/5x-6=0
5x²+6-60x/10x=0
5x²+6-60x=0
5x²-60x+6=0
x=-(-60)+-√¯(-60)²-4.5.6/2.5
x=60+-√¯3600-120/10
x=60+-√¯3480/10
x=60+-2√¯870/10
x=60+2√¯870/10
x=60-2√¯870/10
x=30+√¯870/5
x=30-√¯870/5, x=0: o igual é riscado.
x=30+√¯870/5
x=30-√¯870/5
x=30-√¯870/5, x =30+√¯870/5
¹ ²
Espero ter Ajudado! Boa Noite!
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