imaniee19 imaniee19

22-01-2020
Mathematics

contestada

9a-2b = -8
-7a + 3b = 12

Respuesta :

hirafathima358 hirafathima358

22-01-2020

9a-2b=-8.....1
-7a+3b=12.....2

So,
1 equation into 3 and 2 equation into 2.

Then,
18a-6b=-24
-14a+6b=24.

4a=0 a=0 .

Substitute a value in 2 equation.

b=4.

Hope it helped

Answer Link

Otras preguntas

Question 2 of 10 What is one major problem that has resulted from globalization in the 20th and 21st centuries? A. Economic crises in one country can rapidly sp

Three friends play a game. Jamila has 43 more points than Carter. Carter has 7 points than Aisha. Jamila has 26 points. Write more and solve an equation to find

Five more than the product of a number and four is seven use the variable c for the unknown number

Read the second paragraph of the essay ("In order to lay a due foundation..."). Which of the following conclusions can be MOST clearly drawn from this paragraph

A 12-ounce bottle of ketchup lasts the Smith family 16 weeks. How long would you expect an 18-ounce bottle of ketchup to last at the Smith house?

Please help! 20 points thanks :)

The sum of a number times 2 and 26 is at most negative 22use tge variable w for the unknown number

why do you have to shake a paracetamol bottle before drink .

What is the benefit of completing your exercise all at one time? A. Maintaining a more constant elevated heart rate. B. You burn more calories. C. More muscl

does "who fail to show up for the regents test considered" to be a dependent clause