Question

Calcule as equações
A ) X+2 - 3x-1 = 5 + 2
2. 3. 1

B ) 5 (3x-2) -3 (2x+9)= -(4x-8)

Answer 1

a) -2x+1=7
-2x=7-1
x=6÷(-2)

b) 15x-10-6x-27=-4x+8
9x-40=-4x+8
9x+4x=8+40
13x=48
x=48÷13
x=3,69