The steps for solving the equation 3x + 13 = x + 27 are shown below. What property justifies the second step in the solution?
Step 1: 3x minus x plus 13 equals x minus x plus 27 line break 2x plus 13 equals 27
Step 2: 2x plus 13 minus 13 equals 27 minus 13 line break 2x equals 14
Step 3: 2x equals 14; 2x divided by x equals 14 divided by 2 line break x equal 7
(1 point)
Responses
additive identity
additive identity
additive inverse
additive inverse
substitution
substitution
subtraction property of equality
1 answer
subtraction property of equality
1 answer