Question

rezolvati ecuatiile
a)2x+3=4x-3
b)3(5x-2)=7x+10

Answer 1

a)2x+3=4x-3
2x=6
x=3

b)3(5x-2)=7x+10
15x-6=7x+10
8x=16
x=2

Answer 2

$\displaystyle a).2x+3=4x-3 \\ 2x-4x=-3-3 \\ -2x=-6 \\ 2x=6 \\ x= \frac{6}{2} \\ x=3 \\ b).3(5x-2)=7x+10 \\ 15x-6=7x+10 \\ 15x-7x=10+6 \\ 8x=16 \\ x= \frac{16}{8} \\ x=2$