You can verify that your answer is a solution to the original equation by checking if Testing what what testing is a true statement. Which property of equality allows you to do this? A reflexive B transitive C substitution

substitution is distributive for letters

ie) when we work out for 2x + 5 and 3x -4

we can set = to each other distribute to find x then plug in.

plug in means substitute.

Step-by-step explanation:

transitive is distributive for values for same coefficients in problem solving like Pythagoras a + b = c. but that is not equation checking unless equation replaces it. Answer is substitution for distributive letters.

3< x< 5

step-by-step explanation:

|x - 4| < 1

there are two solutions, one positive and one negative.   remember to flip the inequality when taking the negative solution

x-4 < 1       x-4 > -1

add 4 to each side

x-4+4 < 1+4       x-4+4 > -1+4

x< 5                 x> 3

3< x< 5

angle addition postulate

2x=56

step-by-step explanation: