Create a matrix of the coefficients of each equation. The solutions to the equations should make up the rightmost column of the matrix. Then, row reduce the matrix until you are able to rewrite the equations and solve them. The matrix should be a 4x5 matrix (4 rows and 5 columns) for four equations with four variables. This is known as a system of equations.
Easy! if -a = -4 then a = 4!!
1k+4=5k-3
That's not an equation at all, so it can't be solved.
332 you dunce
"X-4" is not an equation. It's just a number. Its value depends on the value of 'X'.
You cannot solve an expression. You need an equation or inequality.You cannot solve an expression. You need an equation or inequality.You cannot solve an expression. You need an equation or inequality.You cannot solve an expression. You need an equation or inequality.
-3 - 4 - 5 rewrite as, -3 + (-4) + (-5) = - 12 PS this is an expression, not an equation
2y-3x=4
x = 2
-4
This is already the equation. Now you just have to solve it. x=5.
An equation is a true statement. [ 75 + 4 = -2 ] is a false statement.