help, please

Question

help, please

zau31370 · Answer

attachment

KjSaif · Answer

@snowflake0531 I summon you B)

snowflake0531 · Answer

For the first one

y=5x
3x-2y=14

Can you substitute the first equation into the second and solve for x?
3x-2(5x) = 14

zau31370 · Answer

@snowflake0531 wrote:

For the first one y=5x 3x-2y=14 Can you substitute the first equation into the second and solve for x? 3x-2(5x) = 14

yes, it will give you -7x=14

snowflake0531 · Answer

Yes and so what is x?

zau31370 · Answer

-2

snowflake0531 · Answer

Now plug -2 into y=5x

zau31370 · Answer

-10

snowflake0531 · Answer

yes so (-2,-10)

zau31370 · Answer

@snowflake0531 wrote:

yes so (-2,-10)

ok thank you may you help me with the other ones please

snowflake0531 · Answer

Now do the second one
x - 2y = -2
y = 2x + 4

Can you try substitution the second equation into the first?

zau31370 · Answer

@snowflake0531 wrote:

Now do the second one x - 2y = -2 y = 2x + 4 Can you try substitution the second equation into the first?

well it be 2x+4-2=-2

snowflake0531 · Answer

Uhm no
you would do
2 -2(2x+4) = -2

zau31370 · Answer

@snowflake0531 wrote:

Uhm no you would do 2 -2(2x+4) = -2

aghh ok then you simplify it

zau31370 · Answer

@zau31370 wrote:

@snowflake0531 wrote:

Uhm no you would do 2 -2(2x+4) = -2

aghh ok then you simplify it

to -4x-8=-2 ?

snowflake0531 · Answer

SHoot i mean
x-2(2x+4) = -2

zau31370 · Answer

@snowflake0531 wrote:

SHoot i mean x-2(2x+4) = -2

-2x-4=-2 ? i think

snowflake0531 · Answer

No first do the distribution
x-4x-8=-2

zau31370 · Answer

@snowflake0531 wrote:

No first do the distribution x-4x-8=-2

-3x=8-2 which is 6 then divide it by 3 which is 2

snowflake0531 · Answer

It would be -2

snowflake0531 · Answer

y = 2x + 4
so then put -2 into ^^^

zau31370 · Answer

ok so 2(-2) which is -4x+4 which is 0 right?

snowflake0531 · Answer

yes
so (-2,0)

snowflake0531 · Answer

I think you should try the rest by yourself, isolate the x or y, substitute and find the variable

zau31370 · Answer

@snowflake0531 wrote:

I think you should try the rest by yourself, isolate the x or y, substitute and find the variable

hmm ok if i need help may i text you and ask you

snowflake0531 · Answer

yes

zau31370 · Answer

k thank you snowflake

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