Write an equivalent expression in the form ax+b. Do not use spaces in your answer. (3x-8)+(4x+10)

7x+2

Step-by-step explanation: No spaces.

(3x−8)+(4x+10)

Remove parentheses

=> 3x−8+4x+10

Add like terms

=> 3x−8+4x+10

=> 3x+2+4x

=> 7x+2

hope this helps. p.s. i really need brainliest :)

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18

on monday rodney ate 1/4th of the sandwich = 3/12

on tuesday he ate 1/3rd of the sandwich = 4/12

therefore in total he has eaten = 3/12 + 4/12 = 7/12

thus we can say that he has eaten 7/12 of the sandwich on monday and tuesday alltogether.

happy to

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