Q. Find the value of A that makes the following equation true for all values of x.5x+5x+3=A⋅5xA=
Given Equation Transformation: We are given the equation 5x+5x+3=A⋅5x. To find the value of A, we need to express the left side of the equation in terms of 5x so that we can compare it directly to A⋅5x.
Exponent Property Application: We can rewrite 5(x+3) as 5x⋅53 because of the property of exponents that states a(b+c)=ab⋅ac.
Substitution and Simplification: Substitute 5(x+3) with 5x⋅53 in the original equation to get 5x+5x⋅53=A⋅5x.
Factor Out Common Term: Now, factor out 5x from the left side of the equation to get 5x(1+53)=A⋅5x.
Calculate 53: Calculate 5(3) which is 5∗5∗5=125.
Final Substitution: Substitute 53 with 125 in the equation to get 5x(1+125)=A⋅5x.
Combine Terms: Add 1+125 to get 126. So the equation now is 5x⋅126=A⋅5x.
Coefficient Comparison: Since the equation must be true for all values of x, we can equate the coefficients of 5x on both sides of the equation. This gives us 126=A.
Final Value of A: We have found the value of A to be 126, which makes the original equation true for all values of x.
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