Question

metodo de reduccion igualacion sustitucion
2x+3y=1
x+y=-2

4y=3+x10=3
x+7y xfa urgente

Answer 1

2x + 3y = 1
2(- 2 - y) + 3y = 1
- 4 - 2y + 3y = 1
y = 5

x + y= - 2 
x = - 2 - y
x = - 2 - 5
x = - 7
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4y = 3 + x
4y - 3 = x

10 = 3x + 7y 
10 = 3(4y - 3) + 7y
10 = 12y - 9 + 7y
19 = 19y
1 = y

4y - 3 = x
4(1) - 3 = x
4 - 3 = x
1 = x