Solve the simultaneous equations: 3x + y =11; 2x + y = 8
subtract one from the other to eliminate y: 3x+y=11; 2x+y=8 --> x=3substitute value of x back in and solve for y: 3(3)+y=11; 9+y=11; --> y=2
IH
Related Maths GCSE answers
All answers ▸Solve the equation 10x + 4 = 12x + 2
A plane travels at 213 miles per hour. Work out an estimate for how long, in seconds, the plane takes to travel one mile.
Solve algebraically the simultaneous equations: x^2+y^2 = 25 and y-3x=13
Expand and simplify 3(m + 4) – 2(4m + 1)