Question

2x+3=4x
2(2x+1)=30
20=4(x+2)
2x-8=7x-3
4(x+1)=-3(x+5)
porfa me ayudan​

Answer 1

Respuesta:

$1)2x+3=4x \\ 3 = 4x - 2x \\ 3 = 2x \\ x = \frac{3}{2} \\ 2)2(2x+1)=30 \\ 4x + 2 = 30 \\ 4x = 30 - 2 \\ 4x = 28 \\ x = \frac{28}{4} \\ x = 7 \\ </p><p>3)20=4(x+2) \\ 20 = 4x + 8 \\ 20 - 8 = 4x \\ 12 = 4x \\ x = \frac{12}{4} \\ x = 3 \\ 4)2x-8=7x-3 \\ - 8 + 3 = 7x - 2x \\ - 5 = 5x \\ x = \frac{ - 5}{5} \\ x = - 1\\ 5)4(x+1)=-3(x+5) \\ 4x + 4 = - 3x - 15 \\ 4x + 3x = - 15 - 4 \\ 7x = - 19 \\ x = \frac{ - 19}{7}$