Is this right? 7(3x-2)=70
21x-14=70; 21x-14+14=70+14; 21x=84; x=4
Right.
You can prove it's right by substituting 4 for x in your original equation.
21x-14=70; 21x-14+14=70+14; 21x=84; x=4
You can prove it's right by substituting 4 for x in your original equation.