I Need help plz and thank you
Solve each system using the elimination method.
4.6.1) 4a...
Mathematics, 07.12.2020 18:00 ld966057
I Need help plz and thank you
Solve each system using the elimination method.
4.6.1) 4a + 7b = 1
-2a + 7b = -5
A. Subtract −+ -2a + 7b = -5 ab from the other equation so the b-terms become opposites. Then, rewrite the system so there are no parentheses.
→
B. Now, add the equations from Step A vertically.
C. Solve the equation in one variable for that variable.
D. Substitute the result from the previous step into 4a + 7b = 1 and simplify.
E. Write the solution for the system.
F. Check the solution with the original equation not used in Step D.
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