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What is the first step in solving the following system of equations by substitution?
The first step is to show the equations which have not been shown.
What is usually the first step in solving a system of equation by substitution?
The first step is to solve one of the equations for one of the variables. This is then substituted into the other equation or equations.
What is the fifth step in solving the eqution by completing the square 3x2 plus 14x plus 8 equals 0?
3x2+14x+8 = 0 x = -2/3 or x = -4
Who invented the 2 step equations?
The concept of solving 2-step equations, which involve two arithmetic operations to isolate the variable, is a fundamental concept in algebra. The invention of this method cannot be attributed to a single individual, as algebraic equations have been developed and refined over centuries by mathematicians from various cultures. However, the systematic approach to solving equations, including 2-step equations, can be traced back to ancient civilizations such as the Babylonians, Greeks, and Arabs, who made significant contributions to the field of mathematics.
How do you find the solutions of the simultaneous equations of 2x plus 5y equals 16 and -5x-2y equals 2 showing work in step by step stages?
1 If: 2x+5y = 16 and -5x-2y = 2 2 Then: 2*(2x+5y =16) and 5*(-5x-2y = 2) is equvalent to the above equations 3 Thus: 4x+10y = 32 and -25x-10y = 10 4 Adding both equations: -21x = 42 or x = -2 5 Solutions by substitution: x = -2 and y = 4
