Solve for x and y using method of subsititution y=6x-11
-2x-3y=-7
show ur work

x=2, y=1

Step-by-step explanation:

Given:

y=6x-11

-2x-3y=-7

Substitute y in 2nd equation:

-2x-3y=-7

-2x-3(6x-11)=-7

-2x-18x+33=-7

-20x+33=-7

-20x=-40

x=2

Substitute x in 1st equation:

y=6x-11

y=6(2)-11

y=12-11

y=1

(2, 1)

Step-by-step explanation:

y=6x-11...(1)

-2x-3y=-7...(2)

Subsitute (1) into (2)

-2x-3y=-7

-2x-3(6x-11)=-7

-2x-18x+33=-7

-20x=-40

x=2

Subsitute x=2 into (1)

y=6x-11

y=6(2)-11

y=1

Therefore, the solution of the system is the ordered pair (2, 1)

x = 10.1

step-by-step explanation:

all of the angles of a tirangle add up to 180º

180 - 65 = 115 (since we already know the value of one angle)

(2x + 7) + (8x + 7) = 115

(combins like terms) 10x + 14 = 115

(isolate the variable subtract 14 from both sides): 10x = 101

(find the variable divide both sides by 10): x = 101/10

x = 10.1