Question

Calcule a equação 1 grau 3,5×+8=2 (×+7)

Answer 1

Olá boa tarde!
3,5x+8=2(x+7)
3,5x+8=2x+14
3,5x-2x=14-8
1,5x=6
x=6/1,5
x=4

Espero ter ajudado :)

Answer 2

3,5x + 8 = 2(x + 7) 
3,5x +8= 4x +14 
3,5x = 4x +14 - 8
3,5x = 4x + 6
0,5x = - 6 
x = -6 ÷ 1/2 
x = -12