Question

help solving using substitution??
2x+4y=3 and 4x+4y=8

Answer 1

Next time try asking this in the math section.

Substitution method is you have to substitute either one of the equation into one of the unknown.
Let say;
1. 2x + 4y =3
2. 4x + 4y = 8
3. Let use (1) as a y-substitute equation; y = (3-2x)/4
4. Insert (3) into (2); 4x + (4(3-2x))/4 = 8, Find value of x.
5. Substitute value of x from (4) into (3) to find y.