Question

bx - cx = -c solve for x and find any restrictions

what is a restriction???????? HELPPPP

Answer 1

the idea is to isolate x

bx - cx = -c

x(b - c) = -c ... factor out the GCF x on the left side

x = -c/(b-c) .. divide both sides by b-c to isolate x

Answer 2

now the question is: can b and c be any real numbers? or are there restrictions?

Answer 3

btw a restriction is a condition that limits what a variable can be

for example, if you had 1/x, you can have x be any real number BUT x cannot be 0 (since you cannot divide by zero)

Answer 4

OHHHHHHHHHH thanks so much this makes more sense

Answer 5

@jim_thompson5910 there arnt any restrictions right??

Answer 6

there are actually

Answer 7

b-c CANNOT be zero

if it were, then

b - c = 0

b - c + c = 0+c

b = c

so if b = c, then b-c is 0

Answer 8

so the restriction (the only restriction) is that b cannot be equal to c

\[\large b \neq c\]

Answer 9

make sense?

Answer 10

oh ok thanks :)

Answer 11

you're welcome