Question

equaçoes do 1 grau sendo u =a

f) 6x-7=-5x+59

g) 3x-9-7x=-13

i) -x-7+4x=-2x+17

Answer 1

f) 6x-7=-5x+59
6x+5x=59+7
11x=66
x=66/11
x=6
g) 3x-9-7x=-13
3x-7x=-13+9
-4x=-4.(-1)
4x=4
x=4/4
x=1
i) -x-7+4x=-2x+17
-x+4x+2x=17+7
-x+6x=24
5x=24
x=24/5
x=4,8

Answer 2

f)
6x - 7= - 5x + 59
6x + 5x = 59 + 7
11x = 66
x = 66/11
x = 6
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g)
3x - 9 - 7x = - 13
3x - 7x = - 13 + 9
- 4x = - 4 ( - 1)
4x = 4
x = 4/4
x = 1
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i)
- x - 7 + 4x = - 2x + 17
- x + 4x - 7 = - 2x + 17
3x - 7 = - 2x + 17
3x + 2x = 17 + 7
5x = 24
x = 24/5