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.

if that does not make sense get in this https://kami. app/ThejMK2xzf12

Answers: 3

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 19:00, mommytobe2019

How do you find the circumfrance of a circle?

Answers: 1

continue

Mathematics, 22.06.2019 02:10, gabrielolivas59

Martha is training for a duathlon, which includes biking and running. she knows that yesterday she covered a total distance of over 55.5 miles in more than than 4.5 hours of training. martha runs at a speed of 6 mph and bikes at a rate of 15.5 mph.

Answers: 1

continue

Mathematics, 22.06.2019 04:40, Jermlew

Rena used the steps below to evaluate the expression , when . step 1: substitute into the expression. step 2: simplify the parentheses. step 3: evaluate the power to a power. step 4: use reciprocals and find the value. in which step did rena make the first error?

Answers: 2

continue

Mathematics, 22.06.2019 05:10, aliviadushane

In triangle abc, w is the centroid and be = 9. find bw. a. 3 b. 6 c. 9 d. 18

Answers: 2

continue

Do you know the correct answer?

I Need help plz and thank you Solve each system using the elimination method.

4.6.1) 4a...