4x+6y= 10 -10x+2y= −8

x=1, y=1

Step-by-step explanation:

To solve the equations, we first have to label them.

4x +6y= 10 (1)

-10x +2y= -8 (2)

From (1): 2x +3y= 5 (3)

From (2):

-5x +y= -4

y= 5x -4 (4)

Subst. (4) into (3):

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

2x +15x -12= 5 (expand)

17x= 12 +5 (simplify, +12 on both sides)

17x= 17 (simplify)

x= 17 ÷17

x= 1

subst. x=1 into (4):

y= 5(1) -4

y= 5 -4

y= 1

ok

step-by-step explanation:

the terms of a geometric sequence can be found by beginning with the first term and multiplying by the common ratio repeatedly. a recursive formula for a geometric sequence with common ratio r is given by an=ran−1 a n = r a n − 1 for n≥2 n ≥ 2 .

step-by-step explanation: