1) 2(x+3)-5+x=5
2x+a-5=x+5
2x+b=x+5
2x=x+c
x=c
por favor respondão ai
2)4(x+1)-5+3.(2-x)
4x+4=5+a=3x
4x+4=b-3x
x=1
quanto vale o a, b e c de cada questão

what is the answer to this

15: 24

62.5%

step-by-step explanation:

option (a)

step-by-step explanation:

step 1:   take 2 number whose product equal to 25..

and sum of those two number are -10

step: 2 for example here if we take 5,5 are the number,,

5*5=25

and

5+5=10

but we need -10

so if we take   -5,-5

so -5*-5=25

and -5+(-5)=-10

s0

come the equation

replace -10x by these number

like -5x -5x+25

take common

x(x-5)-5(x-5)=0

(x-5)(x-5)=0