gapeaches2580 gapeaches2580

09-08-2021
Mathematics

contestada

Solve the System of Equations by Substitution. Show ALL work

x+y=18
y=2x-3

Respuesta :

teags88 teags88

09-08-2021

x + y = 18 ——— (1)
y = 2x - 3 ——— (2)

sub (2) into (1)

x + (2x - 3) = 18
3x - 3 = 18
3x = 21
x = 7

Hope this helps!

x

Answer Link

Otras preguntas

How many milliliters of 2.55 m naoh is needed to make 125 ml of 0.75 m naoh solution?

what provides a first hand written account of the event a. personal narrative b. Newspaper editorial

What was one reason the south faced severe economic problems during the civil war? the union blocked trade and transportation routes?

Twin studies most clearly indicate that ________ exert(s) a strong influence on the development of our unique personality traits.

which of these is a personal tragedy edgar allan poe experienced? A - his favorite sister died of tuberculosis B - his parents died when he was young C - his fi

how does a catalyst work

Select the topic sentence. 1What is amnesia? 2Most of us think of a dramatic, total loss of memory brought on by a severe blow to the head. 3Amnesia is, howev

To ensure the peaceful development of nations, free from coercion, the United States has taken a leading part in establishing the United Nations. The United Nat

If m1=40 find the measure of <2

The part of the atom that carries a positive charge is the _____, and the part that carries a neutral charge is the _____. neutron; proton electron; proton prot