Question

Quero saber o cálculos dessas fração
4x+8=3x-5
3a-4=a+1
9y-11=-2
5x-1=8×+5

Answer 1

• 4x+8=3x-5

4x - 3x = - 5 - 8

x = -13

• 3a-4=a+1

3a - a = 4 + 1

2a = 5

a = 5/2

• 9y-11=-2

9y = 11 - 2

y = 9/9 = 1

• 5x-1=8×+5

5x - 8x = 5 + 1

-3x = 6 (-1)

3x = -6

x = -6/3 = -2