Given the pair of simultaneous equation:
y=-2/5x-2
y=5x+1
To evaluate the solution of the system of equation from the graph, we obtain the point at which the two linear equations have intersected. taking the values of x and y from the point of intersection that will be the solution of the system of linear equations.
In our case the straight lines have intersected at the point (-0.5, -1.75). This implies that:
x=-0.5
y=-1.75
hence the answer is a] (-0.5, -1.75)
Step-by-step explanation:
1) 3x - 4 = 86 + 24
→ 3x - 4 = 110
→ 3x = 110 + 4 = 114
→ x = 114/3 = 38
therefore, value of x is 38.
2) -10x = 30 + 90
→ -10x = 120
→ x = 120/10 = 12
→ x = 12
therefore, value of x is 12.
3) -8x + 23 + 51 = 130
→ -8x + 74 = 130
→ -8x = 130 - 74
→ -8x = 56
→ x = 56/8
→ x = 7
therefore, value of x is 7.
4) -9 + 2x = 59 + 90
→ -9 + 2x = 149
→ 2x = 149 + 9
→ 2x = 158
→ x = 158/2 = 79
→ x = 79
therefore, value of x is 79.
hope this answer helps you dear...take care !
2n + 8 ≤ 25 |subtract 8 from both sides
2n ≤ 17 |divide both sides by 2
<u>n ≤ 8.5</u>
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