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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soory

Step-by-step explanation:

b: |12 – x| ≤ 0.25

step-by-step explanation:      

let x be the possible lengths in inches, of the ribbons jaime cut.

we have been given that jaime is cutting strips of ribbon for a project. he tries to cut each piece to be 12 inches long, but sometimes he cuts it too long or too short by as much as 0.25 inch.  

we can represent this information in an inequality as:

by the definition of absolute value function we will get,

upon combining our inequalities we will get,

therefore, the inequality   describes all the possible lengths (x), in inches, of the ribbons jaime cut.

step-by-step explanation:

b

step-by-step explanation: