5x+y=-7
3x+y=15
8=D
You'd need another equation to sub in
5
-0.5
You cannot solve one equation in two unknowns.
y = 31
To solve an equation with three unknowns, x, y and z, you require 3 independent equations.
You'd need another equation to sub in
k equals 5.6
5
The equation does not have a solution.
you can not solve this equation
-0.5
27
Solve the following equation for A : 2A/3 = 8 + 4A
You cannot solve one equation in two unknowns.
y = 31
(2x)ysquared