Use the elimination method to solve:
7b + 4c = 8.77
14b + 8c = 15.80
Check Format
Equation 1 is in the correct format.
Check Format
Equation 2 is in the correct format.
Step 1: Multiply Equation 1 by 14:
14 * (7b+4c=8.77) --> 98b + 56c = 122.78
Step 2: Multiply Equation 2 by 7:
7 * (14b+8c=15.80) --> 98b + 56c = 110.6
Step 3: Equation 1 - Equation 2:
98b + 56c = 122.78 - (98b + 56c = 110.6)
-(98b + 56c = 110.6)
56c - 56c = 122.78 - 110.6
Step 4: simplify and solve for c:
0c = 12.18
| c = | 12.18 |
| 0 |
Because c = 12.18/0, our system of equations has no solutions