To find which equation has a solution of -7, we can substitute -7 into each equation and check if the equation is satisfied.
1. -3(-7)-8=-29
21-8=-29
13=-29
This equation is not satisfied when -7 is substituted in.
2. -(-7)+3=-4
7+3=-4
10=-4
This equation is not satisfied when -7 is substituted in.
3. 4(-7)-23=5
-28-23=5
-51=5
This equation is not satisfied when -7 is substituted in.
4. 5(-7)+11=-24
-35+11=-24
-24=-24
This equation is satisfied when -7 is substituted in.
Therefore, the equation 5x+11=-24 has a solution of -7.
Which of the following equations has a solution of -7?
1. -3x-8=-29
2. -x+3=-4
3. 4x-23=5
4. 5x+11=-24
1 answer