Substitution- grade 10 acedemic math

[katiefish]

a system of equations is defined by

x+4y= -10
2x+y=1

a)obtain from equation 1 an expression for x and solve the system
b) obtain from equation 2 an expression for y and solve the system

HELP IS GREATLY APPRECIATED!!!

 

[pka]

a system of equations is defined by
x+4y= -10
2x+y=1
a)obtain from equation 1 an expression for x and solve the system
b) obtain from equation 2 an expression for y and solve the system

Welcome to this help forum. Notice the word help.
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Here is a start: \(\displaystyle \text{If }x+4y=-10\text{ then }x=-4y-10\) .