Please help! Ill give brainliest!

Step-by-step explanation:

ok so as u know the angles of a triangle add up to 180.

So we will be using that for help.

S+R+T=180

12x+13x+12x-4+2-3=180

37x-5=180

37x=185

x=5

Now we will plug in the value for x to find each angle

S= 13(5)-4

=61

T=12(5)-3

=57

R=12(5)+2

=62

Hope this helped:)

62,57,61

Step-by-step explanation:

(12x +2)  + (12x-3 ) + (13x-4)  = 180

37x  = 180 -2 +3+4

37x = 185

x = 185/37 =  5

One angle =(12x +2) = 62

Second angle =(12x-3 ) = 57

Third angle = (13x-4) = 61

5x+40

5(x + 8)

7x - 49

7(x - 7)

18x + 9

9(2x + 1)

15x - 10

5(3x - 2)

step-by-step explanation:

for number one all you have to do is factor 5 out of 5x + 40

for number 2 factor 7 out of 7x - 49

for number three factor 9 out of 18x + 9

for number four factor 5 out of 15x - 10

y -5 = (-1/4)(x + 8)

step-by-step explanation: