I would start by distributing the (-1) through the (5-3x)
2x-5+3x=4x+2
(combine like terms)
5x-5=4x+2
(move the x to the left side of the equation by subtraction)
x-5=2
(then of course we isolate the x by adding the 5 to the right side)
x=7
then you can check your work by replacing all of the x's with 7
2(7)-1(5-3(7))=4(7)+2
14-1(-16)=28+2
14+16=30
30=30
hope this helps!
Answer:
x=19 and y=28
Step-by-step explanation:
3x-2y=1
-x+y=9 which is x=y-9
Substitute the value of x=y-9 in the equation 3x-2y=1
3(y-9)-2y=1
3y-27-2y=1
y-27=1
y=27+1=28
Substitute the value of y=28 in the equation -x+y=9
-x+28=9
x=28-9=19
Answer:
x = 200
Step-by-step explanation:
plug in y
1/5x - 2/3(15) = 30
multiply
1/5x - 10 = 30
get x by itself
1/5x = 40
x = 200
The answer is 64 because 21 times 3 is 63
