5x+7-x=-5
3x+7=6/3
8x-2+2x=5x+2
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5x + 7 - x = - 5
5x - x = - 5 - 7
4x = - 12
x = -12 / 4
x = - 3
_____________
3x + 7 = 6 / 3
3 (3x + 7) = 6
9x + 21 = 6
9x = 6 - 21
9x = - 15
x = -15 / 9
x = - 5 / 3
_____________
8x - 2 + 2x = 5x + 2
8x + 2x - 5x = 2 + 2
10x - 5x = 4
5x = 4
x = 4/5
Bons estudos
5x - x = - 5 - 7
4x = - 12
x = -12 / 4
x = - 3
_____________
3x + 7 = 6 / 3
3 (3x + 7) = 6
9x + 21 = 6
9x = 6 - 21
9x = - 15
x = -15 / 9
x = - 5 / 3
_____________
8x - 2 + 2x = 5x + 2
8x + 2x - 5x = 2 + 2
10x - 5x = 4
5x = 4
x = 4/5
Bons estudos
thalinnyriios:
Obrigadaaaaaaaaaaa me ajudou bastante bb,vllw memo
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