Como resolver essas equações ?
2 x + 3 = 4
2 x +5 = 8
7 x - 8 = 10
6y - 3 = 2
5 x - 2 = 4
4 x + 10 - 8
9x - 5 = 50
300 - 450 x = 900
1x - 50 = 30
500 + 450 x = 30
4 - 5x = 10
30x - 30 =30
100x - 5 = 30
Respostas
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2X+3=4 2X+5=8 7X-8=10 6Y-3=2 5X-2=4
2X=4-3 2X=8-5 7X=10+8 6y=2+3 5X=4+2
x=1/2 X=3/2 X=18/7 y=5/6 X=6/5
4X+10=8 9X-5=50 300-450X=900 1X-50=30 500+450X=30
4X=8-10 9X =50+5 -450X=900-300 1X=30+50 450X=30-500
X= -2/4 X=55/9 -450x=600 X=80 450X= -470
X= -1/2 X=600/-450 X= -470/450 X=4/3 X= -94/75
4-5X=10 30x-30=30 100x-5=30
-5X =10-4 30x=30+30 100x=30+5
X=6/-5 x=60/30 x=35/100
x=2 x=7/20
2X=4-3 2X=8-5 7X=10+8 6y=2+3 5X=4+2
x=1/2 X=3/2 X=18/7 y=5/6 X=6/5
4X+10=8 9X-5=50 300-450X=900 1X-50=30 500+450X=30
4X=8-10 9X =50+5 -450X=900-300 1X=30+50 450X=30-500
X= -2/4 X=55/9 -450x=600 X=80 450X= -470
X= -1/2 X=600/-450 X= -470/450 X=4/3 X= -94/75
4-5X=10 30x-30=30 100x-5=30
-5X =10-4 30x=30+30 100x=30+5
X=6/-5 x=60/30 x=35/100
x=2 x=7/20
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