JUSTIFIES A STEP IN THE SOLUTION OF AN EQUATION

4n+(7+n)=52
4n+(n+7)=52
(4n+n)+7=52
5n+7=52
5n+7-7=52
5n=45
5n/5=45/9
n=9

Similar Questions

A student solves the following equation:Problem: 2(x−3)+3x=19 Step 1: 2x−6+3x=19 Step 2: (2x+3x)−6=19 Step 3: 5x−6=19
1. 1 answer
A student solves the following equation:Problem: 2(x−3)+3x=19 Step 1: 2x−6+3x=19 Step 2: (2x+3x)−6=19 Step 3: 5x−6=19
1. 1 answer
A student solves the following equation:Problem: 2(x−3)+3x=19 Step 1: 2x−6+3x=19 Step 2: (2x+3x)−6=19 Step 3: 5x−6=19
1. 1 answer
A student solves the following equation:Problem: 2(x−3)+3x=19 Step 1: 2x−6+3x=19 Step 2: (2x+3x)−6=19 Step 3: 5x−6=19
1. 1 answer